An excerpt from dmesg:
md: Autodetecting RAID arrays. md: Scanned 2 and added 2 devices. md: autorun ... md: considering sdb1 ... md: adding sdb1 ... md: adding sda1 ... md: created md1 md: bind<sda1> md: bind<sdb1> md: running: <sdb1><sda1> raid1: raid set md1 active with 2 out of 2 mirrors md1: detected capacity change from 0 to 1500299198464 md: ... autorun DONE. md1: unknown partition table EXT3-fs (md1): error: couldn't mount because of unsupported optional features (240) EXT2-fs (md1): error: couldn't mount because of unsupported optional features (240) EXT4-fs (md1): mounted filesystem with ordered data mode
Is it OK that kernel tries to mount an ext4 raid as ext3, ext2 first?
Is there a way to tell it to skip those two steps?
# mdadm --detail --scan ARRAY /dev/md/1 metadata=0.90 UUID=56851215:5dca6eee:776c2c25:004bd7b2 # grep dev/md /etc/fstab /dev/md1 / ext4 noatime 0 1