Description of problem: A missing service file prevents boot. Version-Release number of selected component (if applicable): 3.2.6-11.fc18.x86_64 How reproducible: Always Steps to Reproduce: 1.Update mdadm to -11 2.Poweroff 3.boot Actual results: GDM does not come up Expected results: GDM should come up Additional info: /var/log/messages is littered with: 21630 Jan 16 14:54:32 dhcppc1 systemd[1]: Cannot add dependency job for unit mdmonitor-takeover.service, ignoring: Unit mdmonitor-takeover.servic e failed to load: No such file or directory. See system logs and 'systemctl status mdmonitor-takeover.service' for details.
A workaround is here: https://bugzilla.redhat.com/show_bug.cgi?id=879327#c13 Switching to a virtual terminal, and running: # # sudo mdmon --all --takeover --offroot # sudo systemctl restart gdm.service got GDM to come up normally.
This is probably related to 879327 and has nothing to do with gdm itself. If gdm really depends on the takeover service running, the problem is with gdm, however there is no indication of this in: /usr/lib/systemd/system/gdm.service *** This bug has been marked as a duplicate of bug 879327 ***