[vivid] emulator fails to mount root partition (Invalid argument), landing in busybox

[Martin Pitt]

These days the emulator fails to boot:

$ sudo ubuntu-emulator create --channel=ubuntu-touch/devel devel
$ ubuntu-emulator run devel
[...]
Begin: Running /scripts/local-premount ... [ 0.190059] mmc0: new SDHC card at address e118
done.
[ 0.195316] mmcblk0: mmc0:e118 SU02G 3.72 GiB
[ 0.195983] mmcblk0: unknown partition table
[ 0.270180] initrd: checking filesystem integrity for the userdata partition
[ 0.271256] EXT4-fs (mmcblk0): couldn't mount as ext3 due to feature incompatibilities
[ 0.273543] EXT4-fs (mmcblk0): couldn't mount as ext2 due to feature incompatibilities
[ 0.284652] EXT4-fs (mmcblk0): bad geometry: block count 976562 exceeds size of device (976512 blocks)
[ 0.333267] yaffs: dev is 187695104 name is "mmcblk0" rw
[ 0.333330] yaffs: passed flags "errors=remount-ro"
[ 0.333359] yaffs: Bad mount option "errors=remount-ro"
[ 0.343222] yaffs: dev is 187695104 name is "mmcblk0" rw
[ 0.343271] yaffs: passed flags "errors=remount-ro"
[ 0.343300] yaffs: Bad mount option "errors=remount-ro"
mount: mounting /dev/mmcblk0 on /tmpmnt failed: Invalid argument
umount: can't umount /tmpmnt: Invalid argument
[ 0.370651] mmcblk0: unknown partition table
[ 0.375414] initrd: checking filesystem for userdata took (including e2fsck) 0 seconds
[ 0.375497] initrd: mounting /dev/mmcblk0
[ 0.464983] EXT4-fs: Warning: mounting with data=journal disables delayed allocation and O_DIRECT support!
[ 0.465039] EXT4-fs (mmcblk0): couldn't mount as ext3 due to feature incompatibilities
[ 0.473248] EXT4-fs (mmcblk0): couldn't mount as ext2 due to feature incompatibilities
[ 0.483957] EXT4-fs (mmcblk0): bad geometry: block count 976562 exceeds size of device (976512 blocks)
[ 0.533049] yaffs: dev is 187695104 name is "mmcblk0" rw
[ 0.533113] yaffs: passed flags "discard,data=journal"
[ 0.533140] yaffs: Bad mount option "discard"
[ 0.543012] yaffs: dev is 187695104 name is "mmcblk0" rw
[ 0.543059] yaffs: passed flags "discard,data=journal"
[ 0.543086] yaffs: Bad mount option "discard"
mount: mounting /dev/mmcblk0 on /tmpmnt failed: Invalid argument
[ 0.554010] initrd: boot mode: ubuntu
[ 0.554108] initrd: Couldn't find a system partition.
Couldn't find a system partition. Spawning adbd ...
[ 0.558145] initrd: enabling USB debugging
/scripts/panic/adbd: line 22: can't create /sys/class/android_usb/android0/idVendor: nonexistent directory
/scripts/panic/adbd: line 23: can't create /sys/class/android_usb/android0/idProduct: nonexistent directory
/scripts/panic/adbd: line 24: can't create /sys/class/android_usb/android0/functions: nonexistent directory
/scripts/panic/adbd: line 25: can't create /sys/class/android_usb/android0/enable: nonexistent directory
[ 0.559371] initrd: starting adbd for USB debugging
[ 0.560620] adbd[168]: segfault at c ip 0804cb29 sp bf98e2d8 error 4 in adbd[8048000+20000]
Segmentation fault

BusyBox v1.22.1 (Ubuntu 1:1.22.0-9ubuntu1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

So the primary problem seems to be

  mount: mounting /dev/mmcblk0 on /tmpmnt failed: Invalid argument

The adbd crash also seems important, but secondary.

[Martin Pitt (pitti)]

$ ubuntu-emulator list
devel ubuntu=20141201,device=20141119,custom=20141201,version=1

I also just checked with devel-proposed, same problem.