Hi Andy,
I did the same a few times (!) with a Debian stable. I found two pages
with "recipes" that were convenient to me. For what could be related to
you, I had to modify the "/etc/mkinirtd/mkinitrd.conf" file :
If you are using a SATA drive you pay attention!
edit /etc/mkinitrd/mkinitrd.conf and change:
MODULES=most
to
###MODULES=most
MODULES=dep
and
ROOT=probe
to
###ROOT=probe
ROOT="/dev/md2 jfs"
This tells init to use what it takes to boot off of a raid device not
the /dev/sda device currently used.
(modify according to your specs) The first part (mo=dep) is not
mandatory (it just makes a smaller image), but the second is!
I took this form this page :
http://www.xtronics.com/reference/SATA-RAID-debian-for-2.6.html
this other page is useful if you want to use grub instead of lilo (but
part of it is about IDE drive, which is not useful here) :
http://www.epimetrics.com/topics/one-page?page_id=421&topic=Bit-head%20Stuff&page_topic_id=120
hope that helps.
Laurent
andy liebman wrote:
Hi,
I have spent the better part of this weekend struggling to get a SATA
RAID1 array to boot in Mandriva 2006. I have read EVERYTHING I can
find that's related. I'm stuck. Maybe somebody can point me in the
right direction.
First, let me say it's not practical for me to compile all necessary
drivers into the kernel. I realize that might make like easier.
So, here's the story in summary:
-- I have a motherboard with an ICH5 SATA chipset
-- My normal Mandriva installation boots off of SATA (in real SATA
mode, not pretending to be IDE).
-- A while back, when I installed the bootloader on the single SATA
drive, I chose to put it in the MBR and NOT on the first partition (I
fear that might be part of the problem)
-- I added a second SATA drive, /dev/sdb, which came up fine.
-- I copied the partition layout from /dev/sda with sfdisk
-- I created two RAID1 devices from /dev/sdb1 and /dev/sdb6, with
their counterparts "missing" (using mdadm)
-- I formated the two md devices with ext3
-- I rebooted with a LIVE CD version of Mandriva
-- I copied the contents of /dev/sda1 (/ partition) and /dev/sda6
(/home partition) to /dev/sdb1 and /dev/sdb6 using rsync.
-- I edited fstab and lilo.conf on the the RAID1 "/" partition so that
they would refer to /dev/md1
-- I ran chroot on the /dev/md1 partition
-- I set up an /etc/mdadm.conf file (using mdadm --detail
--scan>>/etc/mdadm.conf -- that's where Mandriva puts it)
-- I added to lilo.conf "raid-extra-boot= and tried both "mbr" and
"/dev/sda,/dev/sdb"
-- I ran mkinitrd and created a new initrd in /boot on /dev/md1. I
got an error about not finding the 3w_9xxx driver, but I don't need to
load that in the initrd anyway so I reran with --builtin=3w_9xxx so
that mkinitrd would skip that driver that I don't need.
BUT, after all of this, I get a bunch of errors when I try to run lilo:
Fatal: Trying to map files from unnamed device 0x0000
or
trying map files unnamed
I tried putting an MBR on /dev/sdb with:
lilo -M /dev/sdb
I tried booting without /dev/sda and of course there's no bootloader
on /dev/sdb so nothing happens.
Does anybody see a solution or see what I'm missing? Help would be
appreciated. I can't believe this is so complicated! :(
Regards,
Andy Liebman
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