Thanks for the information. The key was in the /proc/self/mounts
output: you have cgroups mounted in schroots. This is triggering a bug
in the way cgroups are handled in lxc.
You should be able to work around it by unmounting the cgroup
filesystems from under /var/lib/schroot/mount/rtmpdump-
test/sys/fs/cgroup.
I'll work on a fix for lxc.
** Changed in: lxc (Ubuntu)
Assignee: (unassigned) => Serge Hallyn (serge-hallyn)
** Changed in: lxc (Ubuntu)
Importance: High => Critical
** Changed in: lxc (Ubuntu)
Status: Confirmed => In Progress
** Also affects: lxc (Ubuntu Raring)
Importance: Undecided
Status: New
** Also affects: lxc (Ubuntu Saucy)
Importance: Critical
Assignee: Serge Hallyn (serge-hallyn)
Status: In Progress
** Changed in: lxc (Ubuntu Raring)
Importance: Undecided => Critical
** Changed in: lxc (Ubuntu Raring)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1176287
Title:
lxc-start: Error creating cgroups
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