Damon L. Chesser wrote: > Scott Lair wrote: > >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. > >>>> > >>>>Regards, > >>>> > >>>>Chris > >>>> > >>>> > >>>> > >>>> > >>>Chris, > >>> > >>>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 > >>[EMAIL PROTECTED] > >>[EMAIL PROTECTED] > >> > > > > > >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. > > > >scott lair > > > > > > > Scott, > > Thanks for the reply, I obviously am no expert either. I know you have > to manually set up grub on each HD on a raid0 and a raid1. My question > is, is the limit of only raid0 or raid1 for /boot (assuming separate > partitions) a function of the RHEL install process, or is it a limit in > grub it's self? > > I know this is not a RHEL user list, but this is a grub question, since > I can't seem to locate any documentation on grub and raid limits and I > gave advise to the OP, thought I would have it confirmed or not. > > -- > Damon L. Chesser > [EMAIL PROTECTED] > [EMAIL PROTECTED]
>From what I have seen grub is the limiting factor. It does not "understand" raid5 disks. scott lair -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
