Comment 0 for bug 1004158

when generating the image, if we do it inside an openvz container, the ionice command make the the process fail.

root@ltsp-root03:~# ltsp-update-image -n -a i386
Regenerating kernel...
Skipping yaboot configuration. install yaboot package if you need it.
Skipping netabootwrap images. Install the aboot package if you need them.
Skipping sparc piggyback images. Install the sparc-utils package if you need them.
Done.
Updating /var/lib/tftpboot directories for chroot: /opt/ltsp/i386
ionice: ioprio_set failed: Operation not permitted
Error: mksquashfs failed to build the ltsp image, exiting

we should pull this commit to fix the issue in precise and quantal
http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/revision/2242