also sprach harland christofferson <[EMAIL PROTECTED]> [2007.09.19.0405 +0100]: > okay, this is what i have done: > > # umount /dev/hdc8 > # mdadm /dev/md4 --fail /dev/hdc8 > # mdadm /dev/md4 --remove /dev/hdc8 > # mdadm /dev/md4 --add /dev/hdc8 > > cat-ed /proc/mdstat and see that it is resynching ... > good news. > > now, part two of your suggestion ... unmounting > /dev/hdaX partitions, editing fstab, and remounting. > > won't this cause my system to go belly up?
You need to do this from a rescue disk. I recommend grml. Even though the above procedure *does* restore your RAID and you change /etc/fstab such that on next boot, /dev/mdX would be mounted instead of /dev/hdaX, between the --add and the reboot, something will write to /dev/hdaX and you're back to where you started from. If you don't have a rescue disk, here's one way which would probably also work, but I can't guarantee it. back up the important files change /etc/fstab accordingly fail and remove /dev/hdcX from all arrays call mdadm --zero-superblock on all /dev/hdcX partitions reboot readd all /dev/hdcX partitions to the appropriate arrays -- .''`. martin f. krafft <[EMAIL PROTECTED]> : :' : proud Debian developer, author, administrator, and user `. `'` http://people.debian.org/~madduck - http://debiansystem.info `- Debian - when you have better things to do than fixing systems "and the sea isn't green and i love the queen and what exactly is a dream? and what exactly is a joke?" -- syd barrett
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