Please forgive me if I ask stupid questions, I am fairly new to linux
raid and most of the documentation I can find is severely outdated
and/or written for someone who already understands linux raid.
I have successfully built a set raid 6 array with 4 drives and have
copied my system partitions onto the raid drives. I then reboot with
root=/dev/md0.
Everything looks like it is working right up through:
md/raid:md0 raid level 6 active with 4 out of 4 devices, algorithm 2
md0: detected capacity change from 0 to 1000131788
md: autorun DONE.
md0: unknown partition table
EXT3-fs (md0): error: couldn't mount because of unsupported optional
features
EXT2-fs (md0): error: couldn't mount because of unsupported optional
features
EXT4-fs (md0): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) readonly on device 9:0.
freeing unused kernel memory: 472k freed
at which point it just hangs. No more disk access, no more messages.
The system has 5 WD Caviar Black 500GB drives. I did the linux install
on the first drive and built the other 4 drives into the raid system,
planning to move everything (except the /boot partition) on to the raid
array and then repartition everything except the /boot partition on the
first drive and add it to the raid.
I currently have md0 for / md1 for /home md2 for /usr md3 for /var and
md4 on which I plan on running lvm to allocate to other system needs.
Any advice, insights and/or direction will be greatly appreciated.
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