Comment 14 for bug 488158

Good news, I've just finished a future patch that allows us to stop creating the main group ourselves. When creating an user, the backends can now omit the --gid option, and we let adduser (and equivalents) do the work. This is simpler for everyone. Should be in the next release.

Now I need to get a bug in adduser fixed, because if you specify --uid without --gid, and adduser absolutely wants to use the UID as GID for the new main group, which can fail if the free UID we chose was used by a group (this happens on systems where things are a little messed up, but that's not rare). Since we still have to specify the UID (for now at least), adduser should be patched to choose another GID when needed. Not too hard, I guess.