Because md* and md_d* device names aren't uniqe and can collide, if superblocks and mdadm.conf ARRAY lines don't match devices are not created.
This should be solved with pure UUID-based raid assembly. Bug #158918 ** Changed in: mdadm (Ubuntu) Status: New => Confirmed -- [->UUIDudev] /dev/md_* devices are not created https://bugs.launchpad.net/bugs/486361 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs