I can't confirm this on Edgy nor Feisty. It seems for one they both utilize an updated /usr/sbin/adduser script (line 556 doesn't apply to the function create_homedir). Are you still experiencing this issue?
** Changed in: adduser (Ubuntu) Status: Unconfirmed => Needs Info -- Error message is not clear. https://launchpad.net/bugs/55437 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs