Comment 16 for bug 1587142

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Dr. Thomas Orgis (drthor) wrote :

This very much looks like this ancient issue in RedHat:

https://bugzilla.redhat.com/show_bug.cgi?id=752593

It got fixed at some point in 2012 …

https://bugzilla.redhat.com/show_bug.cgi?id=785739

Is Ubuntu still running mdmon from inside the root fs and killing it before r/o remount?

I am now pondering what to do with a set of file servers running 16.04 and root on an IMSM RAID. I got a number of systems with similar hardware running CentOS 7 just fine with no issue on reboot.

I see elaborate handling of mdmon in systemd units on CentOS … including the --offroot command line parameter that I don't see documented anywhere. KillMode=none might also play a role in the mdmon@.service file.