I can’t share my work scripts, but the logic goes something like this:

BIND_MOUNTS=/foo /bar /baz

for mount in $BIND_MOUNTS; do

done

sudo chroot $CHROOT

The trick is to create a rollback() function that un-does all the mounts, and then do something like this:

trap rollback INT
trap rollback TERM
trap rollback EXIT

That way, things get cleaned up on most exit conditions. You can make your script pretty fancy, to avoid multiple mounts and do distro-specific stuff. You can also use a ROLLBACK array, instead of hard-coding the cleanup process… etc. etc.

Might be too much work for a one-off, but if you spend a lot of time inside chroots, it makes life a lot easier.

alias rid=’rm –one-file-system’

instead and then get into the habit of using rid.

aliasing standard commands like rm to a less dangerous version of themselves seems a great idea until you go onto a system that doesn’t have the alias.