[Bug 1127867] Re: /etc/udev/rules.d/65-mdadm.vol_id.rules uses non-existent 'vol_id'

[Dave Walker]

Hello Jamie, or anyone else affected,

Accepted mdadm into quantal-proposed. The package will build now and be
available at http://launchpad.net/ubuntu/+source/mdadm/3.2.5-1ubuntu3.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: mdadm (Ubuntu Quantal)
       Status: In Progress => Fix Committed

** Tags added: verification-needed

** Changed in: mdadm (Ubuntu Precise)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1127867

Title:
  /etc/udev/rules.d/65-mdadm.vol_id.rules uses non-existent 'vol_id'

Status in “mdadm” package in Ubuntu:
  Fix Released
Status in “mdadm” source package in Lucid:
  Confirmed
Status in “mdadm” source package in Oneiric:
  Confirmed
Status in “mdadm” source package in Precise:
  Fix Committed
Status in “mdadm” source package in Quantal:
  Fix Committed
Status in “mdadm” source package in Raring:
  Fix Released

Bug description:
  [Impact]

   * In Lucid, /etc/udev/rules.d/65-mdadm.vol_id.rules conffile was
  dropped, but not properly removed in the preinst scripts. Later a
  conffile removal was added, but it had a wrong file name.

   * Causes errors to be printed on boot.

   * The fix is to properly remove this conffile.... all the until next
  LTS.

  [Test Case]

   * Install mdadm package in Hardy, upgrade to precise, observe that
  the conffile is not removed.

   * Upgrading to raring/SRU'ed package should remove this conffile.

  [Regression Potential]

   * Minimal as the conffile in question should not be used at boot.

  [Original Description]

  After upgrading a server from 10.04 to 12.04 I saw errors on boot about udev trying to use a non-existent vol_id:
  failed to execute '/lib/udev/vol_id' 'vol_id --export /dev/md0': No such file or directory

  I tracked this down to the following line in /etc/udev/rules.d/65-mdadm.vol_id.rules:
  IMPORT{program}="vol_id --export $tempnode"

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=541884 mentions this issue and says that we should be using '/sbin/blkid -o udev -p ...' instead. Indeed, checking /lib/udev/rules.d/64-md-raid.rules, it has:
  IMPORT{program}="/sbin/blkid -o udev -p $tempnode"

  I then updated /etc/udev/rules.d/65-mdadm.vol_id.rules to use this
  instead, and the errors went away.

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