>> >> >> >> Commands line options: > rd.debug rd.udev.debug systems.log_level=debug > > That willl be incredibly verbose, and slows things down a lot, so in the > off chance there's a race, you might get different results. But if not, > the > log should contain something useful. > > I like the hypothesis about mdadm metadata version 0.9, however that's > still really common on RHEL and CentOS. It was used for /boot prior to > about Fedora around Fedora 24 maybe? At least I didn't have any problems on my systems having all metadata version 1.2, which seems the default for CentOS 7. Maybe it's a good idea to upgrade those arrays with older metadata before doing the 7.6 upgrade. Regards, Simon _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos