On Sun, Apr 01, 2012 at 04:06:59PM -0500, Mike Miller wrote: > On Sun, 1 Apr 2012, Mike Miller wrote: > >> On Sun, 1 Apr 2012, Florin Iucha wrote: >> >>> It seems that you have two RAID devices, md0 and md1, each supported >>> by one partition on sda. There is no other physical disk present, so >>> the arrays are in degraded state. They 'work', but only one disk is >>> present. You have no protection. You have no second drive. >> >> If you are right, that means the message I sent back in October about >> how to do the RAID1 did not work for me. > > Here's that message from October: > > http://shadowknight.real-time.com/pipermail/tclug-list/2011-October/061034.html > > Does anyone see anything wrong in it? I am not sure. You have done this: sudo mdadm --create /dev/md0 --level 1 --raid-devices 2 /dev/sda1 /dev/sdb1 --metadata=0.90 sudo mdadm --create /dev/md1 --level 1 --raid-devices 2 /dev/sda2 /dev/sdb2 --metadata=0.90 http://www.devil-linux.org/documentation/1.0.x/ch01s05.html says this: mdadm --create /dev/md0 --chunk=64 --level=raid1 --raid-devices=2 /dev/hda1 /dev/hdc1 which seems to match the man page: http://linux.die.net/man/8/mdadm My impression is that you need to either use the short version of the arguments and then a space and then the value, or the long version separated by = from the actual value. In other words -l 1 --level=1 --level=raid1 are OK. You entered "--level 1", which may work or may not - I have no system to test it on right now. Cheers, florin -- Beware of software written by optimists! -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 189 bytes Desc: not available URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20120401/7849b044/attachment.pgp>