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[Bug 1515615] Re: Disk quotas don't work in LXC containers

 

What do you mean by "not using real device"?  The real lvm device is
mounted into the container.  However actually offering the device node
into the container would not be a safe default.  In particular, it
allows the container admin to write nonsense onto the device node,
feeding garbage into the in-kernel filesystem driver, and most likely
either DOS or gain privilege on the host.

If root in the container is trusted, then it should be possible to work
this out, but frankly noone seems to have wanted this yet.

There is probably an easier way to achieve what you want.  For instance,
setting up quotas on the host for the container users/filesystems.


** Changed in: lxc (Ubuntu)
   Importance: Low => Wishlist

** Changed in: lxc (Ubuntu)
       Status: Confirmed => Triaged

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https://bugs.launchpad.net/bugs/1515615

Title:
  Disk quotas don't work in LXC containers

Status in lxc package in Ubuntu:
  Triaged

Bug description:
  I'm trying to enable disk quotas in LXC container by adding option to its config:
  lxc.rootfs.options = usrquota

  After booting the container I'm trying to initialize quotas but
  getting the following error:

  root@xxxxxxxx:~# quotacheck -gum /
  quotacheck: Cannot stat() mounted device /dev/lxc/test: No such file or directory
  quotacheck: Mountpoint (or device) / not found or has no quota enabled.
  quotacheck: Cannot find filesystem to check or filesystem not mounted with quota option.

  
  Host OS: Ubuntu 15.04
  Guest OS: Ubuntu 14.04.3 LTS

  lxc 1.1.2-0ubuntu3.2

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