However, I believe the more canonical way of omitting the PIDs to kill would be to use the /run/sendsigs.omit.d directory. Interestingly, /etc/init.d/mdadm already adds mdmon to this, just only on stop, not start. I don't understand why and this may be a mistake.
In any case, I have attached a patch to /etc/init.d/mdadm that adds the mdmon PID to the sendsigsomit.d directory on start.
The check_raid in umountroot is also needed for me and I have included that in the patch
Comment #12 worked for me! Thanks Chris.mn.
However, I believe the more canonical way of omitting the PIDs to kill would be to use the /run/sendsigs. omit.d directory. Interestingly, /etc/init.d/mdadm already adds mdmon to this, just only on stop, not start. I don't understand why and this may be a mistake.
In any case, I have attached a patch to /etc/init.d/mdadm that adds the mdmon PID to the sendsigsomit.d directory on start.
The check_raid in umountroot is also needed for me and I have included that in the patch