> > When libc6 installs it forgets to restart XDM. On my server, I had to > restart it manually because none of my users who access the system via > XDM where able to login It is not safe to restart xdm. It may cause running sessions to fail immidiatly. In general, seems that libc 2.2 -> glibc 2.3 upgrade can't be done it hot way. Almost everything needs to be restarted, including all running user sessions.