I'm starting to see the following startup error the last few boots.
Aug 3 17:30:46 localhost systemd[1]: Started Disk Manager.
Aug 3 17:30:49 localhost systemd[1]: NetworkManager-wait-online.service: main
process exited, code=exited, status=1/FAILURE
Aug 3 17:30:49 localhost systemd[1]: Failed to start Network Manager Wait
Online.
Aug 3 17:30:49 localhost systemd[1]: Unit NetworkManager-wait-online.service
entered failed state.
And then the boot process just seems to hang with some red failed message on
the NetworkManager. Googling this I see various Bugzilla reports in RH,
Fedora, and other distros. Trying to extend the timeout period as mentioned
in one of them.
What does the thing do?