[Bug 1023950] Re: Grub update hangs while upgrading Lucid to Precise

[Thorsten Hesemeyer]

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Title:
  Grub update hangs while upgrading Lucid to Precise

Status in “grub2” package in Ubuntu:
  New

Bug description:
  Hi everyone,

  on a full disk LUKS encrypted system with an unused partition grub update hangs while updating operating system.
  The distribution upgrade does not continue / hangs - the operating system is still responsive.

  Ran distribution upgrade, last window that came up was a debconf
  window "Configuring grub-pc", clicked "Forward" here with  "Continue
  without installing GRUB?" ***not*** selected.

  
  DISTRIBUTION UPGRADE
  ====================
  Distribution upgrade window shows 2minutes remaining for several hours now.
  Last lines from distribution upgrade window:
    Setting up rhythmbox-plugin-cdrecorder (2.96-0ubuntu4) ...
    Setting up grub2-common (1.99-21ubuntu3.1) ...
    Setting up grub-pc-bin (1.99-21ubuntu3.1) ...
    Setting up grub-gfxpayload-lists (0.6) ...
    Setting up grub-pc (1.99-21ubuntu3.1) ...
    Removing update-grub hooks from /etc/kernel-img.conf in favour of
    /etc/kernel/ hooks.
    Replacing config file /etc/default/grub with new version

  
  PROCESS LIST
  ===========
  The process list shows these grub processes:
  root     10199  0.0  0.2   6780  5276 pts/2    Ss+  Jul11   0:04 /usr/bin/dpkg --force-overwrite --status-fd 6 --configure libbsd0 libedit2 openssh-client mime-support libexpat1 libncursesw5 libsqlite3-0 python2.7 python python-support libdbus-1-3 netd

  root     23485  0.0  0.0   6148  1568 ?        Ss   Jul11   0:00 grub-
  mount /dev/mapper/ubu1004-lv_temp /var/lib/os-prober/mount

  root     32713  0.0  1.0  54848 22156 pts/2    Sl+  Jul11   0:03
  /usr/bin/perl -w /usr/share/debconf/frontend /var/lib/dpkg/info/grub-
  pc.postinst configure 1.98-1ubuntu13

  root     32729  0.0  0.0   5336  1652 pts/2    S+   Jul11   0:00
  /bin/bash /var/lib/dpkg/info/grub-pc.postinst configure 1.98-1ubuntu13

  
  DPKG.LOG
  =========
  Last messages in /var/log/dpkg.log:
  2012-07-11 19:27:33 status installed grub-pc-bin 1.99-21ubuntu3.1
  2012-07-11 19:27:33 configure grub-gfxpayload-lists 0.6 <none>
  2012-07-11 19:27:33 status unpacked grub-gfxpayload-lists 0.6
  2012-07-11 19:27:33 status half-configured grub-gfxpayload-lists 0.6
  2012-07-11 19:27:33 status installed grub-gfxpayload-lists 0.6
  2012-07-11 19:27:33 configure grub-pc 1.99-21ubuntu3.1 <none>
  2012-07-11 19:27:33 status unpacked grub-pc 1.99-21ubuntu3.1
  2012-07-11 19:27:33 status unpacked grub-pc 1.99-21ubuntu3.1
  2012-07-11 19:27:33 status unpacked grub-pc 1.99-21ubuntu3.1
  2012-07-11 19:27:33 status half-configured grub-pc 1.99-21ubuntu3.1

  
  HARD DRIVE PARTITIONS
  ====================
  Hard drive setup:
   1 boot partition /dev/sda1
   1 encrypted / partition   lv_root
   1 encrypted /home partition lv_home
   1 encrypted (not mounted) partition lv_temp   <====== this may trigger the issue
   1 encrypted swap partition lv_swap

  I've seen this issue two times now. Both times with an unmounted logical volume that is not listed in /etc/fstab (see "this may trigger the issue" above).
  First hang while updating grub happened on my physical system, this bug report is now done from a virtual machine now.

  Kind regards,
  Thorsten

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: grub-pc 1.99-21ubuntu3.1
  ProcVersionSignature: Ubuntu 2.6.32-41.91-generic 2.6.32.59+drm33.24
  Uname: Linux 2.6.32-41-generic i686
  ApportVersion: 2.0.1-0ubuntu8
  Architecture: i386
  Date: Thu Jul 12 16:56:50 2012
  InstallationMedia: Ubuntu 10.04.4 LTS "Lucid Lynx" - Release i386 (20120214.2)
  ProcEnviron:
   TERM=xterm
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to precise on 2012-07-11 (0 days ago)

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