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.
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.