After an email exchange with Neil Brown, identified that using mdadm -IRs instead of mdadm -Ars will fix this issue. So made the necessary change in the initramfs/init-premount/mdadm script - as a fix.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/728435 Title: raid1 boot degraded mode fails -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs