[Bug 1096771] Re: cgroup-bin (deleted) init scripts stick around

[Serge Hallyn]

** Description changed:

- $ sudo lxc-start -n lucid-test-lp -lDEBUG 
+ =======================
+ SRU Justification
+ 1. Impact: cgroups can be wrongly set up, preventing lxc (and juju-lxc, etc) from working
+ 2. Development fix: properly remove the upstart jobs from older cgroup-bin.
+ 3. Stable fix: same as development fix
+ 4. Test case: install precise's libcgroup1 and cgroup-bin (quick to build from the precise source).  check that /etc/cgred.conf exists.  Install the new versions, and do 'apt-get install -f' to have cgroup-lite (a new dependency) be installed.  Check for /etc/cgred.conf - with the fix, it should have been removed.
+ 5. Regression potential: there should be none.
+ =======================
+ $ sudo lxc-start -n lucid-test-lp -lDEBUG
  lxc-start: No cgroup mounted on the system
  lxc-start: failed to spawn 'lucid-test-lp'
  
  robertc at lifelessdesktop:~$ mount
  /dev/mapper/isw_bichcdfhcg_ARRAY0p6 on / type ext4 (rw,errors=remount-ro)
  proc on /proc type proc (rw,noexec,nosuid,nodev)
  sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
  none on /sys/fs/fuse/connections type fusectl (rw)
  none on /sys/kernel/debug type debugfs (rw)
  none on /sys/kernel/security type securityfs (rw)
  udev on /dev type devtmpfs (rw,mode=0755)
  devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
  tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
  none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
  none on /run/shm type tmpfs (rw,nosuid,nodev)
  none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
  cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,relatime,cpuset)
  cgroup on /sys/fs/cgroup/cpu type cgroup (rw,relatime,cpu)
  cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,relatime,cpuacct)
  cgroup on /sys/fs/cgroup/memory type cgroup (rw,relatime,memory)
  cgroup on /sys/fs/cgroup/devices type cgroup (rw,relatime,devices)
  cgroup on /sys/fs/cgroup/freezer type cgroup (rw,relatime,freezer)
  cgroup on /sys/fs/cgroup/blkio type cgroup (rw,relatime,blkio)
  cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,relatime,perf_event)
  binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
  gvfsd-fuse on /run/user/robertc/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=robertc)
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: lxc 0.8.0~rc1-4ubuntu39
  ProcVersionSignature: Ubuntu 3.5.0-21.32-generic 3.5.7.1
  Uname: Linux 3.5.0-21-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.6.1-0ubuntu9
  Architecture: amd64
  Date: Mon Jan  7 19:14:58 2013
  MarkForUpload: True
  ProcEnviron:
-  LANGUAGE=en_NZ:en
-  TERM=screen
-  PATH=(custom, no user)
-  LANG=en_NZ.UTF-8
-  SHELL=/bin/bash
+  LANGUAGE=en_NZ:en
+  TERM=screen
+  PATH=(custom, no user)
+  LANG=en_NZ.UTF-8
+  SHELL=/bin/bash
  SourcePackage: lxc
  UpgradeStatus: Upgraded to quantal on 2012-10-30 (69 days ago)

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https://bugs.launchpad.net/bugs/1096771

Title:
  cgroup-bin (deleted) init scripts stick around

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