SV: 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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