[Bug 1289017] Re: symbol 'grub_isprint' not found booting degraded software raid1/LVM volume

[Marius B. Kotsbak]

** Description changed:

  After upgrading to 14.04 (daily) and rebooting, grub stops with the
  message:
  
  symbol 'grub_isprint' not found after upgrade to 14.04 (daily)
  
  and enters rescue prompt. I was able to rescue the boot by running
  "grub-install" from a live USB stick with 12.04. Hard drives are using
  software raid1 and LVM. The RAID is was degraded, and running "update-
- grub" was printing a warning message (but it should be bootable. Fixing
- the degraded RAID and rerunning update-grub made it boot again.
+ grub" was printing a warning message:
+ 
+ "Couldn't find physical volume `(null)'. Some modules may be missing
+ from core image."
+ 
+ (but it should be bootable). Fixing the degraded RAID and rerunning
+ update-grub made it boot again.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
  Uname: Linux 3.5.0-26-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Mar  6 22:57:45 2014
  InstallationDate: Installed on 2010-07-04 (1340 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  SourcePackage: grub2
  UpgradeStatus: Upgraded to trusty on 2014-03-06 (0 days ago)
  
  See also another user with the same problem:
  http://askubuntu.com/questions/420687/symbol-grub-isprint-not-found-
  error-on-boot-cannot-use-computer

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https://bugs.launchpad.net/bugs/1289017

Title:
  symbol 'grub_isprint' not found booting degraded software raid1/LVM
  volume

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  After upgrading to 14.04 (daily) and rebooting, grub stops with the
  message:

  symbol 'grub_isprint' not found after upgrade to 14.04 (daily)

  and enters rescue prompt. I was able to rescue the boot by running
  "grub-install" from a live USB stick with 12.04. Hard drives are using
  software raid1 and LVM. The RAID is was degraded, and running "update-
  grub" was printing a warning message:

  "Couldn't find physical volume `(null)'. Some modules may be missing
  from core image."

  (but it should be bootable). Fixing the degraded RAID and rerunning
  update-grub made it boot again.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
  Uname: Linux 3.5.0-26-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.2-0ubuntu5
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Thu Mar  6 22:57:45 2014
  InstallationDate: Installed on 2010-07-04 (1340 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  SourcePackage: grub2
  UpgradeStatus: Upgraded to trusty on 2014-03-06 (0 days ago)

  See also another user with the same problem:
  http://askubuntu.com/questions/420687/symbol-grub-isprint-not-found-
  error-on-boot-cannot-use-computer

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