Bug#829134: debootstrap: Changes needed to support unprivileged userns debootstrap

[bauen1 <j2468h@googlemail.com>]

Hi,

I've made some changes to debootstrap so it will fallback to using bind mounts, see https://salsa.debian.org/installer-team/debootstrap/-/merge_requests/65 for details.

This should make the work around in sbuild-createchroot unnecessary and permit debootstrap to work in unprivileged setups.

As far as I can see this is very similar to how mmdebstrap handles it.

I don't think it covers everything in this bug, but it should make things a lot easier.

--
bauen1
https://dn42.bauen1.xyz/