Comment 30 for bug 1060404

For the record, this hasn't fully been fixed in Quantal: Quantal's /etc/kernel/postinst.d/zz-update-grub does NOT have the container check as introduced in precise's grub2 (1.99-21ubuntu3.9) SRU. This breaks upgrades from quantal to saucy in containers:

  https://jenkins.qa.ubuntu.com/job/upgrade-ubuntu-quantal-saucy-desktop-amd64/27/

(I filed bug 1279658 about this and then found this bug when analyzing it). At this point I'm not sure whether it's still worth SRUing this to quantal, or whether we just apply a workaround in our testing.