Comment 11 for bug 974584

(thinking out loud)

my patch works for a fresh debootstrap. It should have zero effect for a machine install, since it is only in chroots. Similarly, containers are treated as hosts so will not be affected when upgraded under lxc.

Cases to still test, then, include an update from oneiric or lucid to precise inside a chroot or schroot, as well as an oneiric container image upgraded under chroot (not inside lxc). Not sure what else.