On Tue, May 10, 2005 at 01:19:37PM +0100, Nigel Kendrick wrote:
> I'm half way to resolving this (I hope) - I removed the second drive, I have
> installed Centos 4 on the remaining one and NOW I want to create a RAID 1
> mirror for at least the / partition - is there a good howto on this - I
> started searching via Google as soon as I discovered 'mkraid' wasn't there
> any more but I've found nothing so far. Failing that I guess I'll have to
> start all over again!?
you need to look at mdadm and probably change your partition type
for / from ID=83 (Linux) to ID=fd (Linux raid autodetect)
assuming hda3 is your / and hdc is an identical disk
sfdisk -d /dev/hda > hda.part
sfdisk /dev/hdc < hda.part
mdadm -C /dev/md0 --level=raid1 --disks=2 /dev/hda3 /dev/hdc3
change your /etc/fstab and re-create the initrd.
I don't think you can do it on a live system, so
you migh need to do it from a rescue session (linux rescue from
the CD1) but ymmv.
good luck
Tru
--
Tru Huynh (CentOS-3 i386/x86_64 Package Maintenance)
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xBEFA581B
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