[Bug 1384751] Re: checkpoint restore fails with /usr/lib/x86_64-linux-gnu/lxc/lxc-restore-net: not found

[Chris J Arges]

Hello Tycho, or anyone else affected,

Accepted lxc into utopic-proposed. The package will build now and be
available at
http://launchpad.net/ubuntu/+source/lxc/1.1.0~alpha2-0ubuntu3.1 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: lxc (Ubuntu Utopic)
       Status: Triaged => Fix Committed

** Tags added: verification-needed

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https://bugs.launchpad.net/bugs/1384751

Title:
  checkpoint restore fails with /usr/lib/x86_64-linux-gnu/lxc/lxc-
  restore-net: not found

Status in “lxc” package in Ubuntu:
  Fix Released
Status in “lxc” source package in Utopic:
  Fix Committed
Status in “lxc” source package in Vivid:
  Fix Released

Bug description:
  ================================================================
  Impact: restoring containers from a checkpoint doesn't work
  Development fix: LXC uses /usr/lib/x86_64-linux-gnu/lxc as the path to moun the container's root filesystem in its private mount namespace before it pivot_roots during restore. Unfortunately, that's also the location of the lxc-restore-net script which criu tries to execute. Since at this point the container's fs has already been mounted there, the callback (and thus the restore) fails.
  Stable fix: Same as development fix
  Testcase: create a container, then do:
      sudo lxc-checkpoint -n $foo -s -D /tmp/checkpoint
      sudo lxc-checkpoint -r -n $foo -D /tmp/checkpoint

      The restore fails with,

      sh: 1: /usr/lib/x86_64-linux-gnu/lxc/lxc-restore-net: not found

  Regression potential: This can't effect anything besides lxc-checkpoint -r, which is broken anyways, so there should be no regressions.
  ================================================================

  
  A patch for this has been posted to the upstream LXC list here:

  https://lists.linuxcontainers.org/pipermail/lxc-
  devel/2014-October/010741.html

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