[Bug 1229438] Re: update-grub fails with degraded multi-device btrfs root filesystem

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: grub2 (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1229438

Title:
  update-grub fails with degraded multi-device btrfs root filesystem

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Here's what happens:

  $ sudo update-grub
  /usr/sbin/grub-probe: error: failed to get canonical path of .

  Reading the shell scripts, this is grub-mkconfig running "/usr/sbin
  /grub-probe --target=device /".

  Root filesystem is a (currently degraded) multi-device btrfs:

  /dev/sda6 on / type btrfs (rw,degraded,subvol=@)

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: grub-common 2.00-13ubuntu3
  ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  Date: Mon Sep 23 14:50:20 2013
  InstallationDate: Installed on 2013-09-23 (0 days ago)
  InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  MarkForUpload: True
  ProcEnviron:
   SHELL=/bin/bash
   TERM=linux
   PATH=(custom, no user)
   LANG=en_US.UTF-8
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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