Ubuntu
lxc package

lxc-cloned container breaks if source is later destroyed

Bug #1049987 reported by Scott Moser on 2012-09-12

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	lxc (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

$ sudo lxc-clone --orig=source-quantal-amd64 -n xm

$ grep $SRCNAME /var/lib/lxc/xm/config
lxc.mount = /var/lib/lxc/source-quantal-amd64/fstab

The point is that the source is still referenced after the clone.
If you subsequently delete the source (lxc-destroy -n source-quantal-amd64), then the cloned version fails to start.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lxc 0.8.0~rc1-4ubuntu33
ProcVersionSignature: User Name 3.5.0-14.15-generic 3.5.3
Uname: Linux 3.5.0-14-generic x86_64
ApportVersion: 2.5.1-0ubuntu7
Architecture: amd64
Date: Wed Sep 12 18:00:39 2012
Ec2AMI: ami-0000014b
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nova
Ec2InstanceType: m1.small
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
ProcEnviron:
TERM=screen
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: lxc
UpgradeStatus: No upgrade log present (probably fresh install)

Tags:

Revision history for this message

Scott Moser (smoser) wrote on 2012-09-12:

Dependencies.txt Edit (3.4 KiB, text/plain; charset="utf-8")
KernLog.txt Edit (2.5 KiB, text/plain; charset="utf-8")
RelatedPackageVersions.txt Edit (183 bytes, text/plain; charset="utf-8")
lxcsyslog.txt Edit (4.1 KiB, text/plain; charset="utf-8")

Dave Walker (davewalker) on 2012-09-12

Changed in lxc (Ubuntu):
importance:	Undecided → Medium

Serge Hallyn (serge-hallyn) on 2012-09-13

Changed in lxc (Ubuntu):
status:	New → Triaged

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-09-13:

This bug was fixed in the package lxc - 0.8.0~rc1-4ubuntu34

---------------
lxc (0.8.0~rc1-4ubuntu34) quantal; urgency=low

  [ Serge Hallyn ]
  * 0214-give-pclose-errno: help debug pclose failures when lxc runs scripts.
  * 0215-lxc-clone-name-arg: fix incorrect checking for --name argument.
    (LP: #1049914)
  * 0216-hook-kmsg-to-console: link /dev/kmsg to /dev/console so init log
    messages can be seen. (LP: #1049926)
  * 0217-lxc-clone-fix-fstab: fix check for lxc.mount in lxc-clone
    (LP: #1049987)
  * 0218-api-shutdown-fix-doublestop: don't call c->stop() when already
    stopped (LP: #1050001)
  * Update lxc-start-container apparmor abstraction to allow ecryptfs mounts
    from the pre-mount script. Remove the instruction to add that line from
    the example hook.
  * Update lxc-start-container apparmor abstraction to allow mounts to paths
    under /var/lib/lxc/$container/, so that pre-mount hooks can stage mounts
    there. Also update the mountecryptfs example premount hook to use that.
    (LP: #1050469)
  * debian/rules: remove parsing of apparmor.in files.

  [ Stéphane Graber ]
  * Update lxc-start-container apparmor abstraction to allow aufs and overlayfs
    mounts from the pre-mount scripts. This is required by some hooks and will
    be needed by the new lxc-start-ephemeral.
  * Remove multi-arch path in lxc-start-container apparmor abstraction and
    instead just allow /usr/lib/*/lxc/ so nested containers running on a
    different architecture don't get blocked by apparmor.
  * Cherry-pick python-lxc fixes from upstream:
    - Minor PEP-8 syntax fix
    - Return an exception when getting Container instance as non-root
    - Automatically convert any state string passed to wait() to its uppercase
      equivalent.
    - Replace test.py by a full example of the API.
    - Remove zombie handler function from C module as it's no longer required
      and causes weird bugs when used with the hooks.

  [ William Grant ]
  * lxc-start-ephemeral: exit with the command's status, not always 0.
    (LP: #1050351)
-- Serge Hallyn <email address hidden> Thu, 13 Sep 2012 12:02:45 -0500

This bug was fixed in the package lxc - 0.8.0~rc1-4ubuntu34

---------------
lxc (0.8.0~rc1-4ubuntu34) quantal; urgency=low

[ Serge Hallyn ]
  * 0214-give-pclose-errno: help debug pclose failures when lxc runs scripts.
  * 0215-lxc-clone-name-arg: fix incorrect checking for --name argument.
    (LP: #1049914)
  * 0216-hook-kmsg-to-console: link /dev/kmsg to /dev/console so init log
    messages can be seen.  (LP: #1049926)
  * 0217-lxc-clone-fix-fstab: fix check for lxc.mount in lxc-clone
    (LP: #1049987)
  * 0218-api-shutdown-fix-doublestop: don't call c->stop() when already
    stopped (LP: #1050001)
  * Update lxc-start-container apparmor abstraction to allow ecryptfs mounts
    from the pre-mount script.  Remove the instruction to add that line from
    the example hook.
  * Update lxc-start-container apparmor abstraction to allow mounts to paths
    under /var/lib/lxc/$container/, so that pre-mount hooks can stage mounts
    there.  Also update the mountecryptfs example premount hook to use that.
    (LP: #1050469)
  * debian/rules: remove parsing of apparmor.in files.

[ William Grant ]
  * lxc-start-ephemeral: exit with the command's status, not always 0.
    (LP: #1050351)
 -- Serge Hallyn <serge.hallyn@ubuntu.com>   Thu, 13 Sep 2012 12:02:45 -0500

Changed in lxc (Ubuntu):
status:	Triaged → Fix Released

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