# mdadm -C -l raid1 -n 2 /dev/md0 /dev/sdb1 /dev/sdc1 mdadm: array /dev/md0 started. # mdadm -C -l raid1 -n 2 /dev/md1 /dev/sdb2 /dev/sdc2 mdadm: error opening /dev/md1: No such file or directory # ls -l /dev/md* brw-r----- 1 root disk 9, 0 Nov 17 14:21 /dev/md0 # mknod /dev/md1 b 9 1 # mdadm -C -l raid1 -n 2 /dev/md1 /dev/sdb2 /dev/sdc2 mdadm: array /dev/md1 started. Why should I have to create /dev/md1 by hand? I'm not sure what component to assign to, so assigning to udev for now.
See bug #214053.
*** This bug has been marked as a duplicate of 214053 ***