Re: [opensuse] Suse 10.2 installation on Raid 1

On 8/9/07, Art Fore <art.fore@xxxxxxxxxxx> wrote:
I have raid-1 setup as follows.

MD3, 20 GB as / (SDA2, SDC2)
MD4, 267 GB as /home (SDA3, SDC3)
Swap as SDA5 1 gb and SDC5 1 gb

Installation went fine on installation, but on reboot, it says disk has
no operating system.

What did I do wrong and how can I fix it?

I'm going to guess that you've installed this onto SATA drives, and/or
you've enabled RAID in your BIOS. RAID-1 works awesomely on PATA
drives, but one {may|may not} get the above error message when
installing to SATA on some of the 'less-expensive' mobo's. Things get
tricky when one writes grub to the MBR, and need to swap out the
primary drive.

You can also put swap into RAID as well. Consider two PATAs in parallel:

md0-swap-swap-{hda1|hdb1}
md1-ext3-/boot-{hda2|hdb2}
md2-ext3-/{hda3|hdb3}

What does:

cat /proc/mdstat

say?

BTW, mdadm automaticly rebuilds your RAID devices if you startup using
'Rescue' on the 10.2 DVD :-) Way cool!

HTH

Stuart

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