[Bug 878070] Re: /usr/sbin/grub-probe: error: no mapping exists for `rootvol-boot'.

Thu Dec 22 22:08:37 UTC 2011

On 11-12-22 01:37 PM, Alain St-Denis wrote:
> WTF?!?! I encountered the same issue today while trying to upgrade to
> linux-image-server 2.6.32-37.

Welcome aboard.

> I was about to build grub2 from natty
> using prevu but that complained about a missing dependancy (xorriso). So
> I installed xorriso (even if I think this is required only for prevu)

You didn't even have to do that much.  I simply took the package from
the natty repo and installed it on my Lucid machine.  It work{ed,s} just
fine.

> and the problem went away. grub-probe can read my LVM root again. I
> don't understand this...

What part don't you understand?  Why this bug still exists in a Long
Term Support-ed release and nothing appears to be getting done about it?
 Join the club.

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https://bugs.launchpad.net/bugs/878070

Title:
  /usr/sbin/grub-probe: error: no mapping exists for `rootvol-boot'.

Status in “grub2” package in Ubuntu:
  Fix Released

Bug description:
  # grub-install /dev/sda
  /usr/sbin/grub-probe: error: no mapping exists for `rootvol-boot'.
  Auto-detection of a filesystem module failed.
  Please specify the module with the option `--modules' explicitly.

  Clearly rootvol-boot is an LVM LV.  It has an ext4 filesystem on it.

  Not sure what else to tell you or say.  Please let me know if there is
  any further info you need/want.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: grub-pc 1.98-1ubuntu12
  ProcVersionSignature: Ubuntu 2.6.32-34.77-generic 2.6.32.44+drm33.19
  Uname: Linux 2.6.32-34-generic i686
  NonfreeKernelModules: nvidia
  Architecture: i386
  Date: Wed Oct 19 06:19:26 2011
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_CA.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2

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