$ aws ec2 get-console-output --instance-id=i-8e9f8f80 --output=text i-8e9f8f80 rce: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 33 pages/cpu @ffff8800eb000000 s98008 r8192 d28968 u2097152 [ 0.000000] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes) [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 969578 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 3833756K/3939964K available (8394K kernel code, 1282K rwdata, 3944K rodata, 1480K init, 1292K bss, 106208K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1 [ 0.000000] Using NULL legacy PIC [ 0.000000] NR_IRQS:16640 nr_irqs:32 0 [ 0.000000] xen:events: Using 2-level ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] clocksource: xen: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2494.062 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4988.12 BogoMIPS (lpj=9976248) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] Yama: becoming mindful. [ 0.004000] AppArmor: AppArmor initialized [ 0.004000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.004000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.004000] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Initializing cgroup subsys io [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] Initializing cgroup subsys hugetlb [ 0.004000] Initializing cgroup subsys pids [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.004000] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 0 [ 0.004000] CPU: Processor Core ID: 1 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.004000] Last level dTLB entries: 4KB 512, 2MB 0, 4MB 0, 1GB 4 [ 0.035055] Freeing SMP alternatives memory: 28K (ffffffff820b4000 - ffffffff820bb000) [ 0.039304] ftrace: allocating 31994 entries in 125 pages [ 0.048062] cpu 0 spinlock event irq 1 [ 0.048071] smpboot: Max logical packages: 1 [ 0.048076] smpboot: APIC(0) Converting physical 0 to logical package 0 [ 0.048083] Could not initialize VPMU for cpu 0, error -38 [ 0.048102] Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only. [ 0.048771] x86: Booted up 1 node, 1 CPUs [ 0.048823] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.048829] NMI watchdog: Shutting down hard lockup detector on all cpus [ 0.048866] devtmpfs: initialized [ 0.050695] evm: security.selinux [ 0.050700] evm: security.SMACK64 [ 0.050703] evm: security.SMACK64EXEC [ 0.050706] evm: security.SMACK64TRANSMUTE [ 0.050709] evm: security.SMACK64MMAP [ 0.050712] evm: security.ima [ 0.050715] evm: security.capability [ 0.050812] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.050887] pinctrl core: initialized pinctrl subsystem [ 0.070550] RTC time: 165:165:165, date: 165/165/65 [ 0.070664] NET: Registered protocol family 16 [ 0.070677] xen:grant_table: Grant tables using version 1 layout [ 0.070689] Grant table initialized [ 0.070925] PCI: setting up Xen PCI frontend stub [ 0.072583] ACPI: Interpreter disabled. [ 0.072597] xen:balloon: Initialising balloon driver [ 0.072696] xen_balloon: Initialising balloon driver [ 0.072696] vgaarb: loaded [ 0.072696] SCSI subsystem initialized [ 0.072696] usbcore: registered new interface driver usbfs [ 0.072696] usbcore: registered new interface driver hub [ 0.072696] usbcore: registered new device driver usb [ 0.072696] dmi: Firmware registration failed. [ 0.072696] PCI: System does not support PCI [ 0.072696] PCI: System does not support PCI [ 0.072696] NetLabel: Initializing [ 0.072696] NetLabel: domain hash size = 128 [ 0.072696] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.072696] NetLabel: unlabeled traffic allowed by default [ 0.072696] clocksource: Switched to clocksource xen [ 0.077352] AppArmor: AppArmor Filesystem Enabled [ 0.077396] pnp: PnP ACPI: disabled [ 0.078602] NET: Registered protocol family 2 [ 0.078755] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.078847] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.078908] TCP: Hash tables configured (established 32768 bind 32768) [ 0.078953] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.078973] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.182912] NET: Registered protocol family 1 [ 0.183016] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.183025] hw unit of domain pp0-core 2^-16 Joules [ 0.183028] hw unit of domain package 2^-16 Joules [ 0.183032] hw unit of domain dram 2^-16 Joules [ 0.183086] Scanning for low memory corruption every 60 seconds [ 0.183307] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.183333] audit: initializing netlink subsys (disabled) [ 0.183350] audit: type=2000 audit(1472070643.807:1): initialized [ 0.183628] Initialise system trusted keyring [ 0.184792] zbud: loaded [ 0.184987] VFS: Disk quotas dquot_6.6.0 [ 0.185019] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.185237] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.185245] hugetlbfs: disabling because there are no supported hugepage sizes [ 0.185404] fuse init (API version 7.23) [ 0.185518] Key type big_key registered [ 0.185543] Allocating IMA MOK and blacklist keyrings. [ 0.185787] Key type asymmetric registered [ 0.185796] Asymmetric key parser 'x509' registered [ 0.185827] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.185857] io scheduler noop registered [ 0.185863] io scheduler deadline registered (default) [ 0.185890] io scheduler cfq registered [ 0.185955] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.185964] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.186282] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.187266] Linux agpgart interface v0.103 [ 0.189324] brd: module loaded [ 0.190185] loop: module loaded [ 0.190912] libphy: Fixed MDIO Bus: probed [ 0.190919] tun: Universal TUN/TAP device driver, 1.6 [ 0.190923] tun: (C) 1999-2004 Max Krasnyansky [ 0.190966] PPP generic driver version 2.4.2 [ 0.191003] xen_netfront: Initialising Xen virtual ethernet driver [ 0.203204] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.203214] ehci-pci: EHCI PCI platform driver [ 0.203224] ehci-platform: EHCI generic platform driver [ 0.203233] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.203239] ohci-pci: OHCI PCI platform driver [ 0.203248] ohci-platform: OHCI generic platform driver [ 0.203257] uhci_hcd: USB Universal Host Controller Interface driver [ 0.203295] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 1.204792] i8042: No controller found [ 1.204824] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f35047138, max_idle_ns: 440795207432 ns [ 1.204947] mousedev: PS/2 mouse device common for all mice [ 1.205031] i2c /dev entries driver [ 1.205107] device-mapper: uevent: version 1.0.3 [ 1.205167] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com [ 1.205191] ledtrig-cpu: registered to indicate activity on CPUs [ 1.205536] NET: Registered protocol family 10 [ 1.205713] NET: Registered protocol family 17 [ 1.205729] Key type dns_resolver registered [ 1.205736] mce: Unable to init device /dev/mcelog (rc: -5) [ 1.205907] registered taskstats version 1 [ 1.205932] Loading compiled-in X.509 certificates [ 1.206666] Loaded X.509 cert 'Build time autogenerated kernel key: c40ffa48d8617ce4553ee3ab59017c95e74f2501' [ 1.206691] zswap: loaded using pool lzo/zbud [ 1.206835] Key type trusted registered [ 1.206994] Key type encrypted registered [ 1.207003] AppArmor: AppArmor sha1 policy hashing enabled [ 1.207010] ima: No TPM chip found, activating TPM-bypass! [ 1.207030] evm: HMAC attrs: 0x1 [ 1.222910] blkfront: xvda1: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled; [ 1.225558] blkfront: xvdb: flush diskcache: enabled; persistent grants: disabled; indirect descriptors: enabled; [ 1.304134] Magic number: 1:252:3141 [ 1.304178] hctosys: unable to open rtc device (rtc0) [ 1.304227] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 1.304232] EDD information not available. [ 1.304347] md: Waiting for all devices to be available before autodetect [ 1.304353] md: If you don't use raid, use raid=noautodetect [ 1.304495] md: Autodetecting RAID arrays. [ 1.304501] md: Scanned 0 and added 0 devices. [ 1.304504] md: autorun ... [ 1.304507] md: ... autorun DONE. [ 1.304557] VFS: Cannot open root device "LABEL=cloudimg-rootfs" or unknown-block(0,0): error -6 [ 1.304565] Please append a correct "root=" boot option; here are the available partitions: [ 1.304573] 0100 65536 ram0 (driver?) [ 1.304582] 0101 65536 ram1 (driver?) [ 1.304586] 0102 65536 ram2 (driver?) [ 1.304590] 0103 65536 ram3 (driver?) [ 1.304594] 0104 65536 ram4 (driver?) [ 1.304598] 0105 65536 ram5 (driver?) [ 1.304602] 0106 65536 ram6 (driver?) [ 1.304607] 0107 65536 ram7 (driver?) [ 1.304611] 0108 65536 ram8 (driver?) [ 1.304615] 0109 65536 ram9 (driver?) [ 1.304619] 010a 65536 ram10 (driver?) [ 1.304623] 010b 65536 ram11 (driver?) [ 1.304628] 010c 65536 ram12 (driver?) [ 1.304632] 010d 65536 ram13 (driver?) [ 1.304636] 010e 65536 ram14 (driver?) [ 1.304640] 010f 65536 ram15 (driver?) [ 1.304645] ca01 8388608 xvda1 driver: vbd [ 1.304650] ca10 4188672 xvdb driver: vbd [ 1.304654] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.304662] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-34-generic #53-Ubuntu [ 1.304668] 0000000000000000 00000000092ef0ed ffff8800eab8bde8 ffffffff813f11b3 [ 1.304676] ffffffff81c9db50 ffff8800eab8be80 ffff8800eab8be70 ffffffff8118bfe7 [ 1.304683] 6163002000000010 ffff8800eab8be80 ffff8800eab8be18 00000000092ef0ed [ 1.304690] Call Trace: [ 1.304699] [] dump_stack+0x63/0x90 [ 1.304706] [] panic+0xd3/0x215 [ 1.304711] [] mount_block_root+0x201/0x294 [ 1.304716] [] mount_root+0x65/0x68 [ 1.304720] [] prepare_namespace+0x16a/0x1a2 [ 1.304725] [] kernel_init_freeable+0x1e9/0x212 [ 1.304731] [] ? rest_init+0x80/0x80 [ 1.304736] [] kernel_init+0xe/0xe0 [ 1.304741] [] ret_from_fork+0x3f/0x70 [ 1.304745] [] ? rest_init+0x80/0x80 [ 1.308064] Kernel Offset: disabled Xen Minimal OS! start_info: 0x112e000(VA) nr_pages: 0xf0000 shared_inf: 0x7db9d000(MA) pt_base: 0x1131000(VA) nr_pt_frames: 0xd mfn_list: 0x9ae000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: root=/dev/sda1 ro 4 stack: 0x96d840-0x98d840 MM: Init _text: 0x0(VA) _etext: 0x7dc7d(VA) _erodata: 0x9a000(VA) _edata: 0x9fce0(VA) stack start: 0x96d840(VA) _end: 0x9ade40(VA) start_pfn: 1141 max_pfn: f0000 Mapping memory range 0x1400000 - 0xf0000000 setting 0x0-0x9a000 readonly skipped 0x1000 MM: Initialise page allocator for 18ba000(18ba000)-f0000000(f0000000) MM: done Demand map pfns at f0001000-20f0001000. Heap resides at 20f0002000-40f0002000. Initialising timer interface Initialising console ... done. gnttab_table mapped at 0xf0001000. Initialising scheduler Thread "Idle": pointer: 0x20f0002050, stack: 0x2070000 Thread "xenstore": pointer: 0x20f0002800, stack: 0x2080000 xenbus initialised on irq 1 mfn 0x1ee0932 Thread "shutdown": pointer: 0x20f0002fb0, stack: 0x2090000 Dummy main: start_info=0x98d940 Thread "main": pointer: 0x20f0003760, stack: 0x20a0000 "main" "root=/dev/sda1" "ro" "4" vbd 2049 is hd0 ******************* BLKFRONT for device/vbd/2049 ********** backend at /local/domain/0/backend/vbd/7001/2049 16777216 sectors of 512 bytes ************************** vbd 2064 is hd1 ******************* BLKFRONT for device/vbd/2064 ********** backend at /local/domain/0/backend/vbd/7001/2064 8377344 sectors of 512 bytes **************************  Booting 'Ubuntu Yakkety Yak (development branch), kernel 4.4.0-34-generic' root (hd0) Filesystem type is ext2fs, using whole disk kernel /boot/vmlinuz-4.4.0-34-generic root=LABEL=cloudimg-rootfs ro console=hv c0 ============= Init TPM Front ================ Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront initialization! error = ENOENT Tpmfront:Info Shutting down tpmfront close blk: backend=/local/domain/0/backend/vbd/7001/2049 node=device/vbd/2049 close blk: backend=/local/domain/0/backend/vbd/7001/2064 node=device/vbd/2064 [ 0.000000] x86/PAT: Configuration [0-7]: WB WT UC- UC WC WP UC UC [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 4.4.0-34-generic (buildd@lgw01-20) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 (Ubuntu 4.4.0-34.53-generic 4.4.15) [ 0.000000] Command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: Legacy x87 FPU detected. [ 0.000000] x86/fpu: Using 'lazy' FPU context switches. [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] Released 0 page(s) [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x00000000f07fffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] Hypervisor detected: Xen [ 0.000000] e820: last_pfn = 0xf0800 max_arch_pfn = 0x400000000 [ 0.000000] MTRR: Disabled [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x00000000f07fffff] [ 0.000000] NODE_DATA(0) allocated [mem 0xef890000-0xef894fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000f07fffff] [ 0.000000] Normal empty [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009ffff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000f07fffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x00000000f07fffff] [ 0.000000] p2m virtual area at ffffc90000000000, size is 40000000 [ 0.000000] Remapped 0 page(s) [ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff] [ 0.000000] e820: [mem 0xf0800000-0xffffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.2.amazon (preserve-AD) [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 33 pages/cpu @ffff8800eb000000 s98008 r8192 d28968 u2097152 [ 0.000000] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes) [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 969578 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 3833756K/3939964K available (8394K kernel code, 1282K rwdata, 3944K rodata, 1480K init, 1292K bss, 106208K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1 [ 0.000000] Using NULL legacy PIC [ 0.000000] NR_IRQS:16640 nr_irqs:32 0 [ 0.000000] xen:events: Using 2-level ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] clocksource: xen: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2494.062 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4988.12 BogoMIPS (lpj=9976248) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] Yama: becoming mindful. [ 0.004000] AppArmor: AppArmor initialized [ 0.004000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.004000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.004000] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Initializing cgroup subsys io [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] Initializing cgroup subsys hugetlb [ 0.004000] Initializing cgroup subsys pids [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.004000] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 0 [ 0.004000] CPU: Processor Core ID: 0 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.004000] Last level dTLB entries: 4KB 512, 2MB 0, 4MB 0, 1GB 4 [ 0.034955] Freeing SMP alternatives memory: 28K (ffffffff820b4000 - ffffffff820bb000) [ 0.039211] ftrace: allocating 31994 entries in 125 pages [ 0.052064] cpu 0 spinlock event irq 1 [ 0.052074] smpboot: Max logical packages: 1 [ 0.052079] smpboot: APIC(0) Converting physical 0 to logical package 0 [ 0.052085] Could not initialize VPMU for cpu 0, error -38 [ 0.052104] Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only. [ 0.052774] x86: Booted up 1 node, 1 CPUs [ 0.052827] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.052832] NMI watchdog: Shutting down hard lockup detector on all cpus [ 0.052869] devtmpfs: initialized [ 0.054696] evm: security.selinux [ 0.054701] evm: security.SMACK64 [ 0.054704] evm: security.SMACK64EXEC [ 0.054707] evm: security.SMACK64TRANSMUTE [ 0.054711] evm: security.SMACK64MMAP [ 0.054714] evm: security.ima [ 0.054717] evm: security.capability [ 0.054814] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.054893] pinctrl core: initialized pinctrl subsystem [ 0.074904] RTC time: 165:165:165, date: 165/165/65 [ 0.075021] NET: Registered protocol family 16 [ 0.075035] xen:grant_table: Grant tables using version 1 layout [ 0.075045] Grant table initialized [ 0.075279] PCI: setting up Xen PCI frontend stub [ 0.076940] ACPI: Interpreter disabled. [ 0.076953] xen:balloon: Initialising balloon driver [ 0.077056] xen_balloon: Initialising balloon driver [ 0.077056] vgaarb: loaded [ 0.077056] SCSI subsystem initialized [ 0.077056] usbcore: registered new interface driver usbfs [ 0.077056] usbcore: registered new interface driver hub [ 0.077056] usbcore: registered new device driver usb [ 0.077056] dmi: Firmware registration failed. [ 0.077056] PCI: System does not support PCI [ 0.077056] PCI: System does not support PCI [ 0.077056] NetLabel: Initializing [ 0.077056] NetLabel: domain hash size = 128 [ 0.077056] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.077056] NetLabel: unlabeled traffic allowed by default [ 0.077056] clocksource: Switched to clocksource xen [ 0.081317] AppArmor: AppArmor Filesystem Enabled [ 0.081359] pnp: PnP ACPI: disabled [ 0.090696] NET: Registered protocol family 2 [ 0.090847] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.090940] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.091000] TCP: Hash tables configured (established 32768 bind 32768) [ 0.091045] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.091065] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.091106] NET: Registered protocol family 1 [ 0.091191] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.091198] hw unit of domain pp0-core 2^-16 Joules [ 0.091202] hw unit of domain package 2^-16 Joules [ 0.091206] hw unit of domain dram 2^-16 Joules [ 0.091251] Scanning for low memory corruption every 60 seconds [ 0.091444] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.106097] audit: initializing netlink subsys (disabled) [ 0.106115] audit: type=2000 audit(1472070716.701:1): initialized [ 0.106390] Initialise system trusted keyring [ 0.107533] zbud: loaded [ 0.107721] VFS: Disk quotas dquot_6.6.0 [ 0.107753] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.107970] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.107978] hugetlbfs: disabling because there are no supported hugepage sizes [ 0.108154] fuse init (API version 7.23) [ 0.108267] Key type big_key registered [ 0.108292] Allocating IMA MOK and blacklist keyrings. [ 0.108536] Key type asymmetric registered [ 0.108544] Asymmetric key parser 'x509' registered [ 0.108574] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.108603] io scheduler noop registered [ 0.108609] io scheduler deadline registered (default) [ 0.108636] io scheduler cfq registered [ 0.108696] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.108705] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.109016] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.109999] Linux agpgart interface v0.103 [ 0.112036] brd: module loaded [ 0.112912] loop: module loaded [ 0.113671] libphy: Fixed MDIO Bus: probed [ 0.113679] tun: Universal TUN/TAP device driver, 1.6 [ 0.113682] tun: (C) 1999-2004 Max Krasnyansky [ 0.113724] PPP generic driver version 2.4.2 [ 0.113757] xen_netfront: Initialising Xen virtual ethernet driver [ 0.134800] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.134811] ehci-pci: EHCI PCI platform driver [ 0.134821] ehci-platform: EHCI generic platform driver [ 0.134830] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.134836] ohci-pci: OHCI PCI platform driver [ 0.134845] ohci-platform: OHCI generic platform driver [ 0.134854] uhci_hcd: USB Universal Host Controller Interface driver [ 0.134891] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 2.144765] i8042: No controller found [ 2.144799] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f35047138, max_idle_ns: 440795207432 ns [ 2.144923] mousedev: PS/2 mouse device common for all mice [ 2.145012] i2c /dev entries driver [ 2.145092] device-mapper: uevent: version 1.0.3 [ 2.145168] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com [ 2.145237] ledtrig-cpu: registered to indicate activity on CPUs [ 2.145510] NET: Registered protocol family 10 [ 2.145682] NET: Registered protocol family 17 [ 2.145697] Key type dns_resolver registered [ 2.145704] mce: Unable to init device /dev/mcelog (rc: -5) [ 2.145878] registered taskstats version 1 [ 2.145903] Loading compiled-in X.509 certificates [ 2.146643] Loaded X.509 cert 'Build time autogenerated kernel key: c40ffa48d8617ce4553ee3ab59017c95e74f2501' [ 2.146670] zswap: loaded using pool lzo/zbud [ 2.146807] Key type trusted registered [ 2.146962] Key type encrypted registered [ 2.146971] AppArmor: AppArmor sha1 policy hashing enabled [ 2.146981] ima: No TPM chip found, activating TPM-bypass! [ 2.147002] evm: HMAC attrs: 0x1 [ 2.168877] blkfront: xvda1: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled; [ 2.171603] blkfront: xvdb: flush diskcache: enabled; persistent grants: disabled; indirect descriptors: enabled; [ 2.244098] Magic number: 1:252:3141 [ 2.244134] hctosys: unable to open rtc device (rtc0) [ 2.244172] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 2.244176] EDD information not available. [ 2.244272] md: Waiting for all devices to be available before autodetect [ 2.244278] md: If you don't use raid, use raid=noautodetect [ 2.244402] md: Autodetecting RAID arrays. [ 2.244408] md: Scanned 0 and added 0 devices. [ 2.244411] md: autorun ... [ 2.244414] md: ... autorun DONE. [ 2.244461] VFS: Cannot open root device "LABEL=cloudimg-rootfs" or unknown-block(0,0): error -6 [ 2.244468] Please append a correct "root=" boot option; here are the available partitions: [ 2.244476] 0100 65536 ram0 (driver?) [ 2.244484] 0101 65536 ram1 (driver?) [ 2.244489] 0102 65536 ram2 (driver?) [ 2.244493] 0103 65536 ram3 (driver?) [ 2.244497] 0104 65536 ram4 (driver?) [ 2.244501] 0105 65536 ram5 (driver?) [ 2.244505] 0106 65536 ram6 (driver?) [ 2.244509] 0107 65536 ram7 (driver?) [ 2.244513] 0108 65536 ram8 (driver?) [ 2.244517] 0109 65536 ram9 (driver?) [ 2.244522] 010a 65536 ram10 (driver?) [ 2.244526] 010b 65536 ram11 (driver?) [ 2.244530] 010c 65536 ram12 (driver?) [ 2.244534] 010d 65536 ram13 (driver?) [ 2.244538] 010e 65536 ram14 (driver?) [ 2.244542] 010f 65536 ram15 (driver?) [ 2.244547] ca01 8388608 xvda1 driver: vbd [ 2.244553] ca10 4188672 xvdb driver: vbd [ 2.244558] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 2.244565] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-34-generic #53-Ubuntu [ 2.244571] 0000000000000000 000000005893221b ffff8800eab8bde8 ffffffff813f11b3 [ 2.244579] ffffffff81c9db50 ffff8800eab8be80 ffff8800eab8be70 ffffffff8118bfe7 [ 2.244586] 6163002000000010 ffff8800eab8be80 ffff8800eab8be18 000000005893221b [ 2.244594] Call Trace: [ 2.244602] [] dump_stack+0x63/0x90 [ 2.244609] [] panic+0xd3/0x215 [ 2.244614] [] mount_block_root+0x201/0x294 [ 2.244619] [] mount_root+0x65/0x68 [ 2.244623] [] prepare_namespace+0x16a/0x1a2 [ 2.244628] [] kernel_init_freeable+0x1e9/0x212 [ 2.244634] [] ? rest_init+0x80/0x80 [ 2.244639] [] kernel_init+0xe/0xe0 [ 2.244643] [] ret_from_fork+0x3f/0x70 [ 2.244648] [] ? rest_init+0x80/0x80 [ 2.248057] Kernel Offset: disabled Xen Minimal OS! start_info: 0x112e000(VA) nr_pages: 0xf0000 shared_inf: 0x7dc85000(MA) pt_base: 0x1131000(VA) nr_pt_frames: 0xd mfn_list: 0x9ae000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: root=/dev/sda1 ro 4 stack: 0x96d840-0x98d840 MM: Init _text: 0x0(VA) _etext: 0x7dc7d(VA) _erodata: 0x9a000(VA) _edata: 0x9fce0(VA) stack start: 0x96d840(VA) _end: 0x9ade40(VA) start_pfn: 1141 max_pfn: f0000 Mapping memory range 0x1400000 - 0xf0000000 setting 0x0-0x9a000 readonly skipped 0x1000 MM: Initialise page allocator for 18ba000(18ba000)-f0000000(f0000000) MM: done Demand map pfns at f0001000-20f0001000. Heap resides at 20f0002000-40f0002000. Initialising timer interface Initialising console ... done. gnttab_table mapped at 0xf0001000. Initialising scheduler Thread "Idle": pointer: 0x20f0002050, stack: 0x2070000 Thread "xenstore": pointer: 0x20f0002800, stack: 0x2080000 xenbus initialised on irq 1 mfn 0x109496f Thread "shutdown": pointer: 0x20f0002fb0, stack: 0x2090000 Dummy main: start_info=0x98d940 Thread "main": pointer: 0x20f0003760, stack: 0x20a0000 "main" "root=/dev/sda1" "ro" "4" vbd 2049 is hd0 ******************* BLKFRONT for device/vbd/2049 ********** backend at /local/domain/0/backend/vbd/7002/2049 16777216 sectors of 512 bytes ************************** vbd 2064 is hd1 ******************* BLKFRONT for device/vbd/2064 ********** backend at /local/domain/0/backend/vbd/7002/2064 8377344 sectors of 512 bytes **************************  Booting 'Ubuntu Yakkety Yak (development branch), kernel 4.4.0-34-generic' root (hd0) Filesystem type is ext2fs, using whole disk kernel /boot/vmlinuz-4.4.0-34-generic root=LABEL=cloudimg-rootfs ro console=hv c0 ============= Init TPM Front ================ Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront initialization! error = ENOENT Tpmfront:Info Shutting down tpmfront close blk: backend=/local/domain/0/backend/vbd/7002/2049 node=device/vbd/2049 close blk: backend=/local/domain/0/backend/vbd/7002/2064 node=device/vbd/2064 [ 0.000000] x86/PAT: Configuration [0-7]: WB WT UC- UC WC WP UC UC [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 4.4.0-34-generic (buildd@lgw01-20) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 (Ubuntu 4.4.0-34.53-generic 4.4.15) [ 0.000000] Command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: Legacy x87 FPU detected. [ 0.000000] x86/fpu: Using 'lazy' FPU context switches. [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] Released 0 page(s) [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x00000000f07fffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] Hypervisor detected: Xen [ 0.000000] e820: last_pfn = 0xf0800 max_arch_pfn = 0x400000000 [ 0.000000] MTRR: Disabled [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x00000000f07fffff] [ 0.000000] NODE_DATA(0) allocated [mem 0xef890000-0xef894fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000f07fffff] [ 0.000000] Normal empty [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009ffff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000f07fffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x00000000f07fffff] [ 0.000000] p2m virtual area at ffffc90000000000, size is 40000000 [ 0.000000] Remapped 0 page(s) [ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff] [ 0.000000] e820: [mem 0xf0800000-0xffffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.2.amazon (preserve-AD) [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 33 pages/cpu @ffff8800eb000000 s98008 r8192 d28968 u2097152 [ 0.000000] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes) [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 969578 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 3833756K/3939964K available (8394K kernel code, 1282K rwdata, 3944K rodata, 1480K init, 1292K bss, 106208K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1 [ 0.000000] Using NULL legacy PIC [ 0.000000] NR_IRQS:16640 nr_irqs:32 0 [ 0.000000] xen:events: Using 2-level ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] clocksource: xen: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2494.062 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4988.12 BogoMIPS (lpj=9976248) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] Yama: becoming mindful. [ 0.004000] AppArmor: AppArmor initialized [ 0.004000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.004000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.004000] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Initializing cgroup subsys io [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] Initializing cgroup subsys hugetlb [ 0.004000] Initializing cgroup subsys pids [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.004000] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 1 [ 0.004000] CPU: Processor Core ID: 0 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.004000] Last level dTLB entries: 4KB 512, 2MB 0, 4MB 0, 1GB 4 [ 0.035098] Freeing SMP alternatives memory: 28K (ffffffff820b4000 - ffffffff820bb000) [ 0.039358] ftrace: allocating 31994 entries in 125 pages [ 0.048064] cpu 0 spinlock event irq 1 [ 0.048073] smpboot: Max logical packages: 1 [ 0.048078] smpboot: APIC(0) Converting physical 0 to logical package 0 [ 0.048084] Could not initialize VPMU for cpu 0, error -38 [ 0.048103] Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only. [ 0.048764] x86: Booted up 1 node, 1 CPUs [ 0.048820] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.048826] NMI watchdog: Shutting down hard lockup detector on all cpus [ 0.048865] devtmpfs: initialized [ 0.050692] evm: security.selinux [ 0.050697] evm: security.SMACK64 [ 0.050701] evm: security.SMACK64EXEC [ 0.050704] evm: security.SMACK64TRANSMUTE [ 0.050708] evm: security.SMACK64MMAP [ 0.050711] evm: security.ima [ 0.050714] evm: security.capability [ 0.050810] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.050887] pinctrl core: initialized pinctrl subsystem [ 0.070548] RTC time: 165:165:165, date: 165/165/65 [ 0.070663] NET: Registered protocol family 16 [ 0.070677] xen:grant_table: Grant tables using version 1 layout [ 0.070687] Grant table initialized [ 0.070921] PCI: setting up Xen PCI frontend stub [ 0.072530] ACPI: Interpreter disabled. [ 0.072544] xen:balloon: Initialising balloon driver [ 0.072646] xen_balloon: Initialising balloon driver [ 0.072646] vgaarb: loaded [ 0.072646] SCSI subsystem initialized [ 0.072646] usbcore: registered new interface driver usbfs [ 0.072646] usbcore: registered new interface driver hub [ 0.072646] usbcore: registered new device driver usb [ 0.072646] dmi: Firmware registration failed. [ 0.072646] PCI: System does not support PCI [ 0.072646] PCI: System does not support PCI [ 0.072646] NetLabel: Initializing [ 0.072646] NetLabel: domain hash size = 128 [ 0.072646] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.072646] NetLabel: unlabeled traffic allowed by default [ 0.072646] clocksource: Switched to clocksource xen [ 0.077379] AppArmor: AppArmor Filesystem Enabled [ 0.077422] pnp: PnP ACPI: disabled [ 0.078641] NET: Registered protocol family 2 [ 0.078794] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.078886] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.078956] TCP: Hash tables configured (established 32768 bind 32768) [ 0.079001] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.079020] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.183066] NET: Registered protocol family 1 [ 0.183165] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.183174] hw unit of domain pp0-core 2^-16 Joules [ 0.183177] hw unit of domain package 2^-16 Joules [ 0.183181] hw unit of domain dram 2^-16 Joules [ 0.183233] Scanning for low memory corruption every 60 seconds [ 0.183444] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.183469] audit: initializing netlink subsys (disabled) [ 0.183487] audit: type=2000 audit(1472070743.896:1): initialized [ 0.183765] Initialise system trusted keyring [ 0.184931] zbud: loaded [ 0.185123] VFS: Disk quotas dquot_6.6.0 [ 0.185154] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.185373] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.185380] hugetlbfs: disabling because there are no supported hugepage sizes [ 0.185542] fuse init (API version 7.23) [ 0.185655] Key type big_key registered [ 0.185680] Allocating IMA MOK and blacklist keyrings. [ 0.185931] Key type asymmetric registered [ 0.185939] Asymmetric key parser 'x509' registered [ 0.185970] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.186000] io scheduler noop registered [ 0.186006] io scheduler deadline registered (default) [ 0.186033] io scheduler cfq registered [ 0.186094] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.186104] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.186420] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.187407] Linux agpgart interface v0.103 [ 0.189474] brd: module loaded [ 0.190340] loop: module loaded [ 0.191203] libphy: Fixed MDIO Bus: probed [ 0.191210] tun: Universal TUN/TAP device driver, 1.6 [ 0.191214] tun: (C) 1999-2004 Max Krasnyansky [ 0.191253] PPP generic driver version 2.4.2 [ 0.191285] xen_netfront: Initialising Xen virtual ethernet driver [ 0.204742] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.204753] ehci-pci: EHCI PCI platform driver [ 0.204762] ehci-platform: EHCI generic platform driver [ 0.204771] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.204777] ohci-pci: OHCI PCI platform driver [ 0.204787] ohci-platform: OHCI generic platform driver [ 0.204795] uhci_hcd: USB Universal Host Controller Interface driver [ 0.204835] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 1.206306] i8042: No controller found [ 1.206338] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f35047138, max_idle_ns: 440795207432 ns [ 1.206465] mousedev: PS/2 mouse device common for all mice [ 1.206556] i2c /dev entries driver [ 1.206641] device-mapper: uevent: version 1.0.3 [ 1.206749] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com [ 1.206774] ledtrig-cpu: registered to indicate activity on CPUs [ 1.207041] NET: Registered protocol family 10 [ 1.207216] NET: Registered protocol family 17 [ 1.207232] Key type dns_resolver registered [ 1.207239] mce: Unable to init device /dev/mcelog (rc: -5) [ 1.207410] registered taskstats version 1 [ 1.207434] Loading compiled-in X.509 certificates [ 1.208184] Loaded X.509 cert 'Build time autogenerated kernel key: c40ffa48d8617ce4553ee3ab59017c95e74f2501' [ 1.208212] zswap: loaded using pool lzo/zbud [ 1.208356] Key type trusted registered [ 1.208505] Key type encrypted registered [ 1.208515] AppArmor: AppArmor sha1 policy hashing enabled [ 1.208521] ima: No TPM chip found, activating TPM-bypass! [ 1.208541] evm: HMAC attrs: 0x1 [ 1.228924] blkfront: xvda1: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled; [ 1.231633] blkfront: xvdb: flush diskcache: enabled; persistent grants: disabled; indirect descriptors: enabled; [ 1.308117] Magic number: 1:252:3141 [ 1.308156] hctosys: unable to open rtc device (rtc0) [ 1.308200] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 1.308205] EDD information not available. [ 1.308312] md: Waiting for all devices to be available before autodetect [ 1.308317] md: If you don't use raid, use raid=noautodetect [ 1.308452] md: Autodetecting RAID arrays. [ 1.308457] md: Scanned 0 and added 0 devices. [ 1.308461] md: autorun ... [ 1.308464] md: ... autorun DONE. [ 1.308511] VFS: Cannot open root device "LABEL=cloudimg-rootfs" or unknown-block(0,0): error -6 [ 1.308519] Please append a correct "root=" boot option; here are the available partitions: [ 1.308529] 0100 65536 ram0 (driver?) [ 1.308534] 0101 65536 ram1 (driver?) [ 1.308538] 0102 65536 ram2 (driver?) [ 1.308542] 0103 65536 ram3 (driver?) [ 1.308549] 0104 65536 ram4 (driver?) [ 1.308553] 0105 65536 ram5 (driver?) [ 1.308558] 0106 65536 ram6 (driver?) [ 1.308562] 0107 65536 ram7 (driver?) [ 1.308566] 0108 65536 ram8 (driver?) [ 1.308570] 0109 65536 ram9 (driver?) [ 1.308576] 010a 65536 ram10 (driver?) [ 1.308581] 010b 65536 ram11 (driver?) [ 1.308585] 010c 65536 ram12 (driver?) [ 1.308589] 010d 65536 ram13 (driver?) [ 1.308593] 010e 65536 ram14 (driver?) [ 1.308598] 010f 65536 ram15 (driver?) [ 1.308604] ca01 8388608 xvda1 driver: vbd [ 1.308610] ca10 4188672 xvdb driver: vbd [ 1.308614] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.308621] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-34-generic #53-Ubuntu [ 1.308629] 0000000000000000 0000000086d03367 ffff8800eab8bde8 ffffffff813f11b3 [ 1.308638] ffffffff81c9db50 ffff8800eab8be80 ffff8800eab8be70 ffffffff8118bfe7 [ 1.308645] 6163002000000010 ffff8800eab8be80 ffff8800eab8be18 0000000086d03367 [ 1.308652] Call Trace: [ 1.308661] [] dump_stack+0x63/0x90 [ 1.308667] [] panic+0xd3/0x215 [ 1.308673] [] mount_block_root+0x201/0x294 [ 1.308678] [] mount_root+0x65/0x68 [ 1.308682] [] prepare_namespace+0x16a/0x1a2 [ 1.308687] [] kernel_init_freeable+0x1e9/0x212 [ 1.308693] [] ? rest_init+0x80/0x80 [ 1.308698] [] kernel_init+0xe/0xe0 [ 1.308704] [] ret_from_fork+0x3f/0x70 [ 1.308709] [] ? rest_init+0x80/0x80 [ 1.308714] Kernel Offset: disabled Xen Minimal OS! start_info: 0x112e000(VA) nr_pages: 0xf0000 shared_inf: 0x7db9d000(MA) pt_base: 0x1131000(VA) nr_pt_frames: 0xd mfn_list: 0x9ae000(VA) mod_start: 0x0(VA) mod_len: 0 flags: 0x0 cmd_line: root=/dev/sda1 ro 4 stack: 0x96d840-0x98d840 MM: Init _text: 0x0(VA) _etext: 0x7dc7d(VA) _erodata: 0x9a000(VA) _edata: 0x9fce0(VA) stack start: 0x96d840(VA) _end: 0x9ade40(VA) start_pfn: 1141 max_pfn: f0000 Mapping memory range 0x1400000 - 0xf0000000 setting 0x0-0x9a000 readonly skipped 0x1000 MM: Initialise page allocator for 18ba000(18ba000)-f0000000(f0000000) MM: done Demand map pfns at f0001000-20f0001000. Heap resides at 20f0002000-40f0002000. Initialising timer interface Initialising console ... done. gnttab_table mapped at 0xf0001000. Initialising scheduler Thread "Idle": pointer: 0x20f0002050, stack: 0x2070000 Thread "xenstore": pointer: 0x20f0002800, stack: 0x2080000 xenbus initialised on irq 1 mfn 0x1f91b71 Thread "shutdown": pointer: 0x20f0002fb0, stack: 0x2090000 Dummy main: start_info=0x98d940 Thread "main": pointer: 0x20f0003760, stack: 0x20a0000 "main" "root=/dev/sda1" "ro" "4" vbd 2049 is hd0 ******************* BLKFRONT for device/vbd/2049 ********** backend at /local/domain/0/backend/vbd/7003/2049 16777216 sectors of 512 bytes ************************** vbd 2064 is hd1 ******************* BLKFRONT for device/vbd/2064 ********** backend at /local/domain/0/backend/vbd/7003/2064 8377344 sectors of 512 bytes **************************  Booting 'Ubuntu Yakkety Yak (development branch), kernel 4.4.0-34-generic' root (hd0) Filesystem type is ext2fs, using whole disk kernel /boot/vmlinuz-4.4.0-34-generic root=LABEL=cloudimg-rootfs ro console=hv c0 ============= Init TPM Front ================ Tpmfront:Error Unable to read device/vtpm/0/backend-id during tpmfront initialization! error = ENOENT Tpmfront:Info Shutting down tpmfront close blk: backend=/local/domain/0/backend/vbd/7003/2049 node=device/vbd/2049 close blk: backend=/local/domain/0/backend/vbd/7003/2064 node=device/vbd/2064 [ 0.000000] x86/PAT: Configuration [0-7]: WB WT UC- UC WC WP UC UC [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 4.4.0-34-generic (buildd@lgw01-20) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2.1) ) #53-Ubuntu SMP Wed Jul 27 16:06:39 UTC 2016 (Ubuntu 4.4.0-34.53-generic 4.4.15) [ 0.000000] Command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] Centaur CentaurHauls [ 0.000000] x86/fpu: Legacy x87 FPU detected. [ 0.000000] x86/fpu: Using 'lazy' FPU context switches. [ 0.000000] ACPI in unprivileged domain disabled [ 0.000000] Released 0 page(s) [ 0.000000] e820: BIOS-provided physical RAM map: [ 0.000000] Xen: [mem 0x0000000000000000-0x000000000009ffff] usable [ 0.000000] Xen: [mem 0x00000000000a0000-0x00000000000fffff] reserved [ 0.000000] Xen: [mem 0x0000000000100000-0x00000000f07fffff] usable [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] DMI not present or invalid. [ 0.000000] Hypervisor detected: Xen [ 0.000000] e820: last_pfn = 0xf0800 max_arch_pfn = 0x400000000 [ 0.000000] MTRR: Disabled [ 0.000000] Scanning 1 areas for low memory corruption [ 0.000000] NUMA turned off [ 0.000000] Faking a node at [mem 0x0000000000000000-0x00000000f07fffff] [ 0.000000] NODE_DATA(0) allocated [mem 0xef890000-0xef894fff] [ 0.000000] Zone ranges: [ 0.000000] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 0.000000] DMA32 [mem 0x0000000001000000-0x00000000f07fffff] [ 0.000000] Normal empty [ 0.000000] Device empty [ 0.000000] Movable zone start for each node [ 0.000000] Early memory node ranges [ 0.000000] node 0: [mem 0x0000000000001000-0x000000000009ffff] [ 0.000000] node 0: [mem 0x0000000000100000-0x00000000f07fffff] [ 0.000000] Initmem setup node 0 [mem 0x0000000000001000-0x00000000f07fffff] [ 0.000000] p2m virtual area at ffffc90000000000, size is 40000000 [ 0.000000] Remapped 0 page(s) [ 0.000000] SFI: Simple Firmware Interface v0.81 http://simplefirmware.org [ 0.000000] smpboot: Allowing 1 CPUs, 0 hotplug CPUs [ 0.000000] PM: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff] [ 0.000000] e820: [mem 0xf0800000-0xffffffff] available for PCI devices [ 0.000000] Booting paravirtualized kernel on Xen [ 0.000000] Xen version: 4.2.amazon (preserve-AD) [ 0.000000] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645519600211568 ns [ 0.000000] setup_percpu: NR_CPUS:256 nr_cpumask_bits:256 nr_cpu_ids:1 nr_node_ids:1 [ 0.000000] PERCPU: Embedded 33 pages/cpu @ffff8800eb000000 s98008 r8192 d28968 u2097152 [ 0.000000] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes) [ 0.000000] Built 1 zonelists in Node order, mobility grouping on. Total pages: 969578 [ 0.000000] Policy zone: DMA32 [ 0.000000] Kernel command line: root=LABEL=cloudimg-rootfs ro console=hvc0 [ 0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes) [ 0.000000] Memory: 3833756K/3939964K available (8394K kernel code, 1282K rwdata, 3944K rodata, 1480K init, 1292K bss, 106208K reserved, 0K cma-reserved) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 64. [ 0.000000] RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=1. [ 0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=1 [ 0.000000] Using NULL legacy PIC [ 0.000000] NR_IRQS:16640 nr_irqs:32 0 [ 0.000000] xen:events: Using 2-level ABI [ 0.000000] Console: colour dummy device 80x25 [ 0.000000] console [tty0] enabled [ 0.000000] console [hvc0] enabled [ 0.000000] clocksource: xen: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.000000] installing Xen timer for CPU 0 [ 0.000000] tsc: Detected 2494.062 MHz processor [ 0.004000] Calibrating delay loop (skipped), value calculated using timer frequency.. 4988.12 BogoMIPS (lpj=9976248) [ 0.004000] pid_max: default: 32768 minimum: 301 [ 0.004000] Security Framework initialized [ 0.004000] Yama: becoming mindful. [ 0.004000] AppArmor: AppArmor initialized [ 0.004000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes) [ 0.004000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes) [ 0.004000] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes) [ 0.004000] Initializing cgroup subsys io [ 0.004000] Initializing cgroup subsys memory [ 0.004000] Initializing cgroup subsys devices [ 0.004000] Initializing cgroup subsys freezer [ 0.004000] Initializing cgroup subsys net_cls [ 0.004000] Initializing cgroup subsys perf_event [ 0.004000] Initializing cgroup subsys net_prio [ 0.004000] Initializing cgroup subsys hugetlb [ 0.004000] Initializing cgroup subsys pids [ 0.004000] ENERGY_PERF_BIAS: Set to 'normal', was 'performance' [ 0.004000] ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8) [ 0.004000] CPU: Physical Processor ID: 0 [ 0.004000] CPU: Processor Core ID: 1 [ 0.004000] Last level iTLB entries: 4KB 512, 2MB 8, 4MB 8 [ 0.004000] Last level dTLB entries: 4KB 512, 2MB 0, 4MB 0, 1GB 4 [ 0.035078] Freeing SMP alternatives memory: 28K (ffffffff820b4000 - ffffffff820bb000) [ 0.039356] ftrace: allocating 31994 entries in 125 pages [ 0.048070] cpu 0 spinlock event irq 1 [ 0.048080] smpboot: Max logical packages: 1 [ 0.048084] smpboot: APIC(0) Converting physical 0 to logical package 0 [ 0.048090] Could not initialize VPMU for cpu 0, error -38 [ 0.048110] Performance Events: unsupported p6 CPU model 62 no PMU driver, software events only. [ 0.048823] x86: Booted up 1 node, 1 CPUs [ 0.048878] NMI watchdog: disabled (cpu0): hardware events not enabled [ 0.048884] NMI watchdog: Shutting down hard lockup detector on all cpus [ 0.048922] devtmpfs: initialized [ 0.050754] evm: security.selinux [ 0.050759] evm: security.SMACK64 [ 0.050762] evm: security.SMACK64EXEC [ 0.050765] evm: security.SMACK64TRANSMUTE [ 0.050769] evm: security.SMACK64MMAP [ 0.050772] evm: security.ima [ 0.050775] evm: security.capability [ 0.050872] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.050950] pinctrl core: initialized pinctrl subsystem [ 0.070614] RTC time: 165:165:165, date: 165/165/65 [ 0.070764] NET: Registered protocol family 16 [ 0.070781] xen:grant_table: Grant tables using version 1 layout [ 0.070793] Grant table initialized [ 0.071068] PCI: setting up Xen PCI frontend stub [ 0.072708] ACPI: Interpreter disabled. [ 0.072722] xen:balloon: Initialising balloon driver [ 0.072824] xen_balloon: Initialising balloon driver [ 0.072824] vgaarb: loaded [ 0.072824] SCSI subsystem initialized [ 0.072824] usbcore: registered new interface driver usbfs [ 0.072824] usbcore: registered new interface driver hub [ 0.072824] usbcore: registered new device driver usb [ 0.072824] dmi: Firmware registration failed. [ 0.072824] PCI: System does not support PCI [ 0.072824] PCI: System does not support PCI [ 0.072824] NetLabel: Initializing [ 0.072824] NetLabel: domain hash size = 128 [ 0.072824] NetLabel: protocols = UNLABELED CIPSOv4 [ 0.072824] NetLabel: unlabeled traffic allowed by default [ 0.072824] clocksource: Switched to clocksource xen [ 0.077466] AppArmor: AppArmor Filesystem Enabled [ 0.077512] pnp: PnP ACPI: disabled [ 0.078732] NET: Registered protocol family 2 [ 0.078890] TCP established hash table entries: 32768 (order: 6, 262144 bytes) [ 0.078983] TCP bind hash table entries: 32768 (order: 7, 524288 bytes) [ 0.079049] TCP: Hash tables configured (established 32768 bind 32768) [ 0.079094] UDP hash table entries: 2048 (order: 4, 65536 bytes) [ 0.079114] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes) [ 0.079156] NET: Registered protocol family 1 [ 0.079245] RAPL PMU detected, API unit is 2^-32 Joules, 3 fixed counters 163840 ms ovfl timer [ 0.079253] hw unit of domain pp0-core 2^-16 Joules [ 0.079256] hw unit of domain package 2^-16 Joules [ 0.079260] hw unit of domain dram 2^-16 Joules [ 0.079309] Scanning for low memory corruption every 60 seconds [ 0.183128] futex hash table entries: 256 (order: 2, 16384 bytes) [ 0.183157] audit: initializing netlink subsys (disabled) [ 0.183178] audit: type=2000 audit(1472070775.053:1): initialized [ 0.183461] Initialise system trusted keyring [ 0.184639] zbud: loaded [ 0.184835] VFS: Disk quotas dquot_6.6.0 [ 0.184865] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.185093] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.185101] hugetlbfs: disabling because there are no supported hugepage sizes [ 0.185261] fuse init (API version 7.23) [ 0.185377] Key type big_key registered [ 0.185402] Allocating IMA MOK and blacklist keyrings. [ 0.185648] Key type asymmetric registered [ 0.185656] Asymmetric key parser 'x509' registered [ 0.185689] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249) [ 0.185719] io scheduler noop registered [ 0.185724] io scheduler deadline registered (default) [ 0.185752] io scheduler cfq registered [ 0.185813] pci_hotplug: PCI Hot Plug PCI Core version: 0.5 [ 0.185822] pciehp: PCI Express Hot Plug Controller Driver version: 0.4 [ 0.186145] Serial: 8250/16550 driver, 32 ports, IRQ sharing enabled [ 0.187144] Linux agpgart interface v0.103 [ 0.189213] brd: module loaded [ 0.190077] loop: module loaded [ 0.191115] libphy: Fixed MDIO Bus: probed [ 0.191123] tun: Universal TUN/TAP device driver, 1.6 [ 0.191127] tun: (C) 1999-2004 Max Krasnyansky [ 0.191168] PPP generic driver version 2.4.2 [ 0.191201] xen_netfront: Initialising Xen virtual ethernet driver [ 0.206247] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver [ 0.206259] ehci-pci: EHCI PCI platform driver [ 0.206269] ehci-platform: EHCI generic platform driver [ 0.206277] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 0.206284] ohci-pci: OHCI PCI platform driver [ 0.206293] ohci-platform: OHCI generic platform driver [ 0.206302] uhci_hcd: USB Universal Host Controller Interface driver [ 0.206343] i8042: PNP: No PS/2 controller found. Probing ports directly. [ 2.004573] i8042: No controller found [ 2.004604] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f35047138, max_idle_ns: 440795207432 ns [ 2.004730] mousedev: PS/2 mouse device common for all mice [ 2.004805] i2c /dev entries driver [ 2.004886] device-mapper: uevent: version 1.0.3 [ 2.004964] device-mapper: ioctl: 4.34.0-ioctl (2015-10-28) initialised: dm-devel@redhat.com [ 2.004997] ledtrig-cpu: registered to indicate activity on CPUs [ 2.005317] NET: Registered protocol family 10 [ 2.013650] NET: Registered protocol family 17 [ 2.013667] Key type dns_resolver registered [ 2.013674] mce: Unable to init device /dev/mcelog (rc: -5) [ 2.013841] registered taskstats version 1 [ 2.013865] Loading compiled-in X.509 certificates [ 2.014602] Loaded X.509 cert 'Build time autogenerated kernel key: c40ffa48d8617ce4553ee3ab59017c95e74f2501' [ 2.014628] zswap: loaded using pool lzo/zbud [ 2.014742] Key type trusted registered [ 2.014886] Key type encrypted registered [ 2.014896] AppArmor: AppArmor sha1 policy hashing enabled [ 2.014903] ima: No TPM chip found, activating TPM-bypass! [ 2.014923] evm: HMAC attrs: 0x1 [ 2.036966] blkfront: xvda1: barrier or flush: disabled; persistent grants: disabled; indirect descriptors: enabled; [ 2.039711] blkfront: xvdb: flush diskcache: enabled; persistent grants: disabled; indirect descriptors: enabled; [ 2.112122] Magic number: 1:252:3141 [ 2.112164] hctosys: unable to open rtc device (rtc0) [ 2.112210] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found [ 2.112215] EDD information not available. [ 2.112327] md: Waiting for all devices to be available before autodetect [ 2.112334] md: If you don't use raid, use raid=noautodetect [ 2.112473] md: Autodetecting RAID arrays. [ 2.112479] md: Scanned 0 and added 0 devices. [ 2.112482] md: autorun ... [ 2.112485] md: ... autorun DONE. [ 2.112533] VFS: Cannot open root device "LABEL=cloudimg-rootfs" or unknown-block(0,0): error -6 [ 2.112541] Please append a correct "root=" boot option; here are the available partitions: [ 2.112549] 0100 65536 ram0 (driver?) [ 2.112557] 0101 65536 ram1 (driver?) [ 2.112562] 0102 65536 ram2 (driver?) [ 2.112566] 0103 65536 ram3 (driver?) [ 2.112572] 0104 65536 ram4 (driver?) [ 2.112576] 0105 65536 ram5 (driver?) [ 2.112580] 0106 65536 ram6 (driver?) [ 2.112584] 0107 65536 ram7 (driver?) [ 2.112588] 0108 65536 ram8 (driver?) [ 2.112593] 0109 65536 ram9 (driver?) [ 2.112597] 010a 65536 ram10 (driver?) [ 2.112601] 010b 65536 ram11 (driver?) [ 2.112605] 010c 65536 ram12 (driver?) [ 2.112609] 010d 65536 ram13 (driver?) [ 2.112613] 010e 65536 ram14 (driver?) [ 2.112617] 010f 65536 ram15 (driver?) [ 2.112622] ca01 8388608 xvda1 driver: vbd [ 2.112627] ca10 4188672 xvdb driver: vbd [ 2.112631] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 2.112639] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.0-34-generic #53-Ubuntu [ 2.112645] 0000000000000000 000000000835ad81 ffff8800eab8bde8 ffffffff813f11b3 [ 2.112652] ffffffff81c9db50 ffff8800eab8be80 ffff8800eab8be70 ffffffff8118bfe7 [ 2.112659] 6163002000000010 ffff8800eab8be80 ffff8800eab8be18 000000000835ad81 [ 2.112666] Call Trace: [ 2.112675] [] dump_stack+0x63/0x90 [ 2.112682] [] panic+0xd3/0x215 [ 2.112688] [] mount_block_root+0x201/0x294 [ 2.112692] [] mount_root+0x65/0x68 [ 2.112696] [] prepare_namespace+0x16a/0x1a2 [ 2.112701] [] kernel_init_freeable+0x1e9/0x212 [ 2.112707] [] ? rest_init+0x80/0x80 [ 2.112712] [] kernel_init+0xe/0xe0 [ 2.112717] [] ret_from_fork+0x3f/0x70 [ 2.112721] [] ? rest_init+0x80/0x80 [ 2.112727] Kernel Offset: disabled 2016-08-24T20:33:05.000Z $ aws ec2 describe-instances --instance-id=i-8e9f8f80 { "Reservations": [ { "Instances": [ { "ImageId": "ami-3f72e928", "Placement": { "Tenancy": "default", "GroupName": "", "AvailabilityZone": "us-east-1b" }, "AmiLaunchIndex": 0, "LaunchTime": "2016-08-24T19:25:43.000Z", "ProductCodes": [], "RootDeviceType": "ebs", "StateTransitionReason": "", "PrivateDnsName": "ip-10-16-187-130.ec2.internal", "NetworkInterfaces": [], "KernelId": "aki-919dcaf8", "PublicDnsName": "ec2-54-163-61-114.compute-1.amazonaws.com", "KeyName": "brickies", "BlockDeviceMappings": [ { "DeviceName": "/dev/sda1", "Ebs": { "AttachTime": "2016-08-24T19:25:44.000Z", "DeleteOnTermination": true, "Status": "attached", "VolumeId": "vol-44d726e8" } } ], "Hypervisor": "xen", "VirtualizationType": "paravirtual", "SecurityGroups": [ { "GroupId": "sg-d1c21fba", "GroupName": "wide-open" } ], "Architecture": "x86_64", "ClientToken": "dlGmi1472066742985", "PublicIpAddress": "54.163.61.114", "Monitoring": { "State": "disabled" }, "RootDeviceName": "/dev/sda1", "InstanceType": "m3.medium", "PrivateIpAddress": "10.16.187.130", "EbsOptimized": false, "InstanceId": "i-8e9f8f80", "State": { "Name": "running", "Code": 16 } } ], "OwnerId": "950047163771", "Groups": [ { "GroupId": "sg-d1c21fba", "GroupName": "wide-open" } ], "ReservationId": "r-44ad8b90" } ] } $ aws ec2 describe-images --image-id=ami-3f72e928 { "Images": [ { "CreationDate": "2016-08-15T11:21:48.000Z", "Hypervisor": "xen", "ImageType": "machine", "Architecture": "x86_64", "KernelId": "aki-919dcaf8", "VirtualizationType": "paravirtual", "Public": true, "RootDeviceType": "ebs", "ImageLocation": "099720109477/ubuntu/images-testing/ebs-ssd/ubuntu-yakkety-daily-amd64-server-20160815.1", "BlockDeviceMappings": [ { "Ebs": { "DeleteOnTermination": true, "SnapshotId": "snap-bde11927", "VolumeSize": 8, "VolumeType": "gp2", "Encrypted": false }, "DeviceName": "/dev/sda1" }, { "DeviceName": "/dev/sdb", "VirtualName": "ephemeral0" } ], "RootDeviceName": "/dev/sda1", "State": "available", "ImageId": "ami-3f72e928", "OwnerId": "099720109477", "Name": "ubuntu/images-testing/ebs-ssd/ubuntu-yakkety-daily-amd64-server-20160815.1" } ] }