[CentOS] Replacing failed software RAID drive
Hugh E Cruickshank
hugh at forsoft.com
Wed Oct 10 03:11:44 UTC 2007
From: Les Mikesell Sent: October 7, 2007 18:53
> OK, you just have to replace the drive, fdisk matching partitions on it
> ("fdisk -l /dev/sde" will show the sizes you need), then use
> mdadm --add /dev/md? /dev/sda?
> for each one to add the missing partition back.
I have been able to review all this and it looks very straight forward.
> Then reinstall grub on the drive.
Now I have some questions:
1. Since the /boot partition was mirrored and will be restored on the
new sda drive I do not really want to do a full grub install. From
what I have read that will overwrite existing /boot/grub/grub.conf
file. So I just want to write the MBR on the drive. How to I do
that (the docs I have found were rather unclear on that aspect)?
2. Can a install grub on the replaced boot drive with the system still
Hugh E Cruickshank, Forward Software, www.forward-software.com
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