Arch Linux

gattu_marrudu

Member

Registered: 2008-03-29

Posts: 39

Cannot boot from SCSI RAID with 2.6.24 (I read other posts before)

Hi,
I installed Arch for AMD64 from CD (kernel 2.6.22) and I was able to boot from a RAID 0 partition on two SCSI disks without a problem.
After upgrading to 2.6.24 I got a kernel panic.
Basically, udev cannot recognize my SCSI disks as /dev/sd* and therefore cannot assemble the RAID:

md: unknown device /dev/sdb1
md: unknown device /dev/sdb2

At boot, the [udev] hook just reports:

Running Hook [udev]
Loading udev...done.

Adding "break=y" to the GRUB boot menu I was able to enter the initramfs. Listing the devices in /dev, I cannot see any /dev/sd* actually, but there are some /dev/0:0:0:0 and /dev/3:0:0:0 entries, which seem to correspond to my SCSI disks.
So I tried to substitute the GRUB entry

kernel /vmlinuz26 root=/dev/md0 ro md=0,/dev/sdb1,/dev/sdc1

with

kernel /vmlinuz26 root=/dev/md0 ro md=0,/dev/0:0:0:0,/dev/3:0:0:0

No success.

The kernel modules for my SCSI disks are loaded.

I'm stuck. Any hints?

Thanks,
gm