[clug] Mirroring boot disk on Debian

[Stephen Jenkin]

Thanks to all who replied.

This is the best resource that I found.
http://www.bigwebmaster.com/General/Howtos/Software-RAID-HOWTO-7.html

Created an initial install in /dev/hda1 and also setup /dev/md1 as
[/dev/hda2, /dev/hdc2]

Alter the install/config was over, copied root filesystem to /dev/md1
filesystem [exclude /proc and mkdir it later].
  Altered necessary files: /etc/lilo.conf and /etc/fstab.

Secret formula NOT in any web resources:
- added line 'md' to /etc/mkinitrd/modules

Then rerun 'mkinitrd' [used own /boot/initrd.img - default is OK]

So that the 'md' disks were available after 'initrd' was finished with...

Then select the new /dev/md1 image on the lilo boot...

[As you can see, booting from LILO, not grub]

Debian is 'testing' or 'sarge'. Pretty up-to-date...

regards
stevej

On Wed, 17 Nov 2004, Stephen Jenkin wrote:

> Anyone done this or can give me pointers??
> 
> I've had two goes & am not happy with the result...
> 
> Debian (sarge/testing) has install options of LVM or Neil Brown's MDADM
> [multi-disk.  Not quite mirroring...]
> Debian doesn't support booting from either. [or so it says]
> 
> The sarge-installer's version of LVM concatenated the disks, [raid 0], did
> not seem to offer me raid 1 :-(
> 
> Found a package 'raidtools2' & read the doco - gives two methods of
> creating bootable mirrored disk.  Is this "the one true way"??
> [apologies in advance, not meant to offend, just my humour]
> 
> TIA
> steve
> 
> Steve Jenkin, Unix Sys Admin
> 0412 786 915 (+61 412 786 915)
> PO Box 48, Kippax ACT 2615, AUSTRALIA
> 
> sjenkin at canb.auug.org.au http://www.tip.net.au/~sjenkin
> 
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Steve Jenkin, Unix Sys Admin
0412 786 915 (+61 412 786 915)
PO Box 48, Kippax ACT 2615, AUSTRALIA

sjenkin at canb.auug.org.au http://www.tip.net.au/~sjenkin