Yes, booting an old kernel gives a good system.

On Mar 13, 2017 12:21 PM, "Joseph Salisbury" <email address hidden>
wrote:

> Does the bug go away if you boot back into the prior kernel version?
>
> ** Changed in: linux (Ubuntu)
>    Importance: Undecided => High
>
> ** Also affects: linux (Ubuntu Xenial)
>    Importance: Undecided
>        Status: New
>
> ** Changed in: linux (Ubuntu Xenial)
>        Status: New => Confirmed
>
> ** Changed in: linux (Ubuntu Xenial)
>    Importance: Undecided => High
>
> ** Tags added: kernel-da-key
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1672224
>
> Title:
>   Upgrade to kernel version 4.4.0-66 of Ubuntu 16.04 LTS caused major
>   chaos/failures
>
> Status in linux package in Ubuntu:
>   Confirmed
> Status in linux source package in Xenial:
>   Confirmed
>
> Bug description:
>   The most obvious issue upon logging in was that there were no network
> interfaces save the loopback.
>   A review of the logs suggested there were many major problems with the
> upgrade.
>
>   Interestingly, the system suggested that I delete all other versions
>   of the kernel immediately after this failed upgrade.  This would have
>   rendered the system nearly unusable.
>
>   This is not the user experience I was thinking of when I chose an LTS
>   version.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 16.04
>   Package: linux-image-4.4.0-66-generic 4.4.0-66.87
>   ProcVersionSignature: Ubuntu 4.4.0-63.84-generic 4.4.44
>   Uname: Linux 4.4.0-63-generic x86_64
>   NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia
>   ApportVersion: 2.20.1-0ubuntu2.5
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC1:  doug       2348 F.... pulseaudio
>    /dev/snd/controlC2:  doug       2348 F.... pulseaudio
>    /dev/snd/controlC0:  doug       2348 F.... pulseaudio
>   CurrentDesktop: Unity
>   Date: Sun Mar 12 15:23:41 2017
>   EcryptfsInUse: Yes
>   HibernationDevice: RESUME=UUID=caabec9a-7ba2-451a-91a5-af1bef3bfc38
>   InstallationDate: Installed on 2017-01-20 (51 days ago)
>   InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
> (20160420.1)
>   IwConfig:
>    lo        no wireless extensions.
>
>    enp6s0    no wireless extensions.
>   MachineType: System manufacturer System Product Name
>   ProcEnviron:
>    LANGUAGE=en_US
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   ProcFB: 0 VESA VGA
>   ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-63-generic
> root=UUID=ecd4d068-85e7-40c9-8483-d2dbfaadc20b ro rootflags=subvol=@
> quiet splash vt.handoff=7
>   RelatedPackageVersions:
>    linux-restricted-modules-4.4.0-63-generic N/A
>    linux-backports-modules-4.4.0-63-generic  N/A
>    linux-firmware                            1.157.8
>   RfKill:
>
>   SourcePackage: linux
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   dmi.bios.date: 12/10/2013
>   dmi.bios.vendor: American Megatrends Inc.
>   dmi.bios.version: 0908
>   dmi.board.asset.tag: To be filled by O.E.M.
>   dmi.board.name: P8Z77-V LE PLUS
>   dmi.board.vendor: ASUSTeK COMPUTER INC.
>   dmi.board.version: Rev X.0x
>   dmi.chassis.asset.tag: Asset-1234567890
>   dmi.chassis.type: 3
>   dmi.chassis.vendor: Chassis Manufacture
>   dmi.chassis.version: Chassis Version
>   dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0908:bd12/10/2013:
> svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:
> rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLEPLUS:rvrRevX.0x:
> cvnChassisManufacture:ct3:cvrChassisVersion:
>   dmi.product.name: System Product Name
>   dmi.product.version: System Version
>   dmi.sys.vendor: System manufacturer
>
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