Re: Problems installing BRUB with RAID5
Damon L. Chesser wrote:
> Damon L. Chesser wrote:
> >Chris Willard wrote:
> >>Hi All,
> >>I have a pc with 3x40GB IDE drives.
> >>I have 2 RAID 5 devices setup-
> >>/dev/md0 = 3 x 38GB as /
> >>/dev/md1 = 3 x 2GB as SWAP
> >>Debian base installs OK but when I get to the Grub installation I get a
> >>"Fatal Error" message.
> >>I am telling Grub to install on /dev/md0 but it won't install.
> >>Any tips would be appreciated.
> >AFAIK, grub can only be set up on a raid0 or a raid1 device. So far,
> >I can not document this, but I seem to recall that fact. As others
> >said, you need to install grub on REAL devices. You can see
> >www.damtek.com for a (I hope rather thorough) walk through on how to
> >set up grub on a raid.
> Just adding more info on the on the raid0 and raid1 and grub. I have
> just remembered where I got that info from. RHEL-4 will only let you
> select raid0 or raid1 for the /boot partition, or for / if /boot is not
> a separate partition during install. I suspect this is a RHEL issue and
> not a grub issue, but truly, I don't know. I just did not want to be
> putting out bad info, so I thought I would expand on why I thought only
> raid0 and raid1 would work for grub.
> Since I can't find any documentation on the limits of raid and grub, I
> suspect you can run raid5. Anybody willing to confirm this for me?
> Damon L. Chesser
My experience with raid5 was that grub cannot be installed on it.
I had to setup grub on each drive in my mirror separatel. I ended up setting up
a small /boot then setting up grub on each disk in the mirror. If I recall
correctly, grub was installed on /dev/hda only, so I ran setup on /dev/hdb etc...
just from my own experience, I'm no expert.