I have also encountered this bug and tried to nail it down. It seems like the following files have been left:
/etc/passwd.lock /etc/passwd+ /etc/shadow.lock I renamed these files and now I can successfully create users again. Out of curiosity, I checked what was in the passwd+ file, the result was: < guest:x:115:123:Guest,,,:/:/bin/bash --- > guest:x:115:123:Guest,,,:/tmp/guest-home.t4xKqt:/bin/bash ...it seems like this was left from a (crashed/hung?) attempt to make a guest session. -- usermod fails: "cannot lock /etc/passwd" https://bugs.launchpad.net/bugs/432964 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
