I know Hardware Raid is but but for some application Software Raid is useful
and generally works ok
I manually created a Broken Raid1 mirror using a LiveCD
single partition raid md1
Installed OpenSuse 15.2 by selecting keep existing partitions
Resulting installtion boots fine.
I have added the 2nd disk using mdadm /dev/md1 --add /dev/sdb1
check with cat /proc/mdstat - miiror is complete
I tried Yast boot loader & selecting sdb but the disk does not boot!!
first disk sda does but not sdb
any ideas would be welcome