see also https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1587142
mdadm with imsm metadata seems to be completely broken in ubuntu.
Having something as common as RAID1 on Intel boards broken is not very nice.
Until this can be fixed, it would be good to at least add a very visible warning in the mdadm documentation and in the distro release notes.
see also https:/ /bugs.launchpad .net/ubuntu/ +source/ systemd/ +bug/1587142
mdadm with imsm metadata seems to be completely broken in ubuntu.
Having something as common as RAID1 on Intel boards broken is not very nice.
Until this can be fixed, it would be good to at least add a very visible warning in the mdadm documentation and in the distro release notes.