Message-ID: <67CD8E4253F9D41182BB0002B3151E5A3C3F0F@QUEENS> From: Fredrik Pettai <fredrik.pettai@copper.se> Date: Tue, 11 Jun 2002 17:05:14 +0200 Subject: SV: [suse-sparc] Boot + Root + Raid + Silo (instead of Lilo)
Ok.
Then making a mirrored / (root) partition, according to RAID HOWTO...
- Make partitions on the (empty) mirrordisk
- Make the partition type to RAID (8e?)
- Make filesystems, mount as raid
- Copy all files to the mirrordisk.
- Make the nessesary changes in Silo.conf, fstab, raidtab etc. on the
mirrordisk
- Install Silo on mirrordisk
- Boot up on the mirrordisk (which is configured as RAID?)
- Change the state in RAID of the orginal disk from "broken" to "good"
QUESTION1: Is this the preferable way to do it??? Or are there any easier
way???
( I only have to disks )
QUESTION2: Can (anybody) show me a good example of the silo.conf with RAID
configured.
( Some of the options in the Boot+Root+RAID+Lilo HOWTO doesn't work in silo,
which makes me chick-out :-)
QUESTION3: Should or could i mirror the /boot and swap? RAID HOWTO doesn't
recommend mirroring the swap, so i that maybe answers half the question...
Well, heres some info on my system:
Sparc 5. to internal disks...
SuSE dist version i'm running is 7.3.
The kernel version is the included 2.2.20 with RAID support compiled in
staticly.
fdisk -l /dev/sda looks like this:
Disk /dev/sda (Sun disk label): 16 heads, 135 sectors, 3880 cylinders
Units = cylinders of 2160 * 512 bytes
Device Flag Start End Blocks Id System
/dev/sda1 0 24 25920 83 Linux native
/dev/sda2 u 24 267 262440 82 Linux swap
/dev/sda3 u 0 3880 4190400 5 Whole disk
/dev/sda4 267 3586 3584520 83 Linux native
/dev/sda5 3586 3880 317520 83 Linux native
And mounted like this:
/dev/sda1 is /boot
/dev/sda4 is / (root)
/dev/sda5 is /var
(just say if you need more info from me...)
TIA,
Fredrik
>
> Fredrik Pettai wrote:
>
> >
> > I'm using a old Sparc5 with to scsi-disk on target 3 and 1.
> > The disk have the same geometry (and size of course)...
>
>
> I have the same setup, but with RAID0 rather than RAID1.
>
> It's been a year and a bit since i set it up, so my memory
> would not be
> good enough to write a howto, but if you describe the
> problems you are
> having perhaps i can help. I just followed the instructions
> in the root
> on RAID howto.
>
> I've got /dev/sda and /dev/sdb
>
> sda1 = swap
> sda2 = raid
> sda3 = whole disc
> sdb1 = swap
> sdb2 = boot
> sdb3 = whole disc
> sdb4 = raid
>
>
> silo is installed into sdb3
> For a reliable mirror setup you would want to duplicate the boot
> partition on both discs, and install silo to both discs.
>
> I found that raid autodetection doesn't work on sparc so my silo.conf
> contains
>
> append=" md=0,/dev/sda2,/dev/sdb4"
>
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