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[peter swain <swine@xxxxxxxxx>]

I've had the same issue on amd64, with the unattended-upgrade failing,
with all grub initramfs images poisoned after the aborted upgrade
because /dev/disk/by-uuid is no longer being populated

So it's probably not the kernel image which caused the breakage (it
never ran), but some other xxx:3.11.0-15 which affects the creation of
the /dev/disk hierarchy

Now hunting root cause, I'll post findings

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https://bugs.launchpad.net/bugs/1260727

Title:
  [Acer Aspire 5720] 3.11.0-15-generic lockup regression

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Proposed new kernel 3.11.0-15-generic causes system to lock up /
  freeze solid no info found in logs, but it has happened 4 times now
  when using 0-14 never even once!

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-15-generic 3.11.0-15.23
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pete       1915 F.... pulseaudio
   /dev/snd/pcmC0D0p:   pete       1915 F...m pulseaudio
  Date: Fri Dec 13 13:11:11 2013
  HibernationDevice: RESUME=UUID=cd9d1b86-7160-43cc-a28b-926c6f862f47
  InstallationDate: Installed on 2013-10-13 (60 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20130925.1)
  MachineType: Acer Aspire 5720
  MarkForUpload: True
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=UUID=c8a2e313-25fb-4a74-b004-246f118d4e78 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/09/2007
  dmi.bios.vendor: Acer
  dmi.bios.version: V1.14
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Nettiling
  dmi.board.vendor: Acer
  dmi.board.version: V1.14
  dmi.chassis.type: 1
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.14
  dmi.modalias: dmi:bvnAcer:bvrV1.14:bd08/09/2007:svnAcer:pnAspire5720:pvrV1.14:rvnAcer:rnNettiling:rvrV1.14:cvnAcer:ct1:cvrV1.14:
  dmi.product.name: Aspire 5720
  dmi.product.version: V1.14
  dmi.sys.vendor: Acer

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