Bug#286276: kernel-image-2.6.8-9-amd64-k8: Unable to mount md devices

[Marc Singer <elf@buici.com>]

On Sun, Dec 19, 2004 at 03:00:13PM +0100, Frederik Schueler wrote:
> Hello,
> 
> On Sat, Dec 18, 2004 at 04:35:37PM -0800, Marc Singer wrote:
> > I'm testing this kernel on a machine that resently boots to 2.6.7 with
> > no initrd and, therefore, all drivers for boot are compiled into the
> > kernel.
> >  There are four drives in the array, all with type 0xfd.  The
> > 2.6.7 kernel finds them automatically.  The 2.6.8 package does not,
> > but that isn't the issue as this device isn't needed at boot-time.
>  
> Did you add the needed md and raid modules to your initrd?
> 
> > Once the kernel boots, I load the raid5 module and look at
> > /proc/mdstat.  It looks OK.  mdadm --assemble /dev/md0, however,
> > crashes.  I haven't saved error messages, though I could write then to
> > a file if need be.
> 
> you need to put the modules into /etc/mkinitrd/modules, and recreate you
> initrd with 
> 
> mkinitrd -o /boot/initrd.img-2.6.8-9-amd64-k8 2.6.8-9-amd64-k8

Added 

  raid1
  raid5
  md

to the modules file and booted with the updated initrd.  Indeed, the
modules are loaded.  The error persists.

> 
> and rerun lilo, if you use it.

Using grub.

> This should fix the problem.

Here're the messages from the dmesg log:

On running fdisk -l:

  ioctl32(fdisk:4187): Unknown cmd fd(5) cmd(80081272){00} arg(ffffdab8) on /dev/hda
  ioctl32(fdisk:4187): Unknown cmd fd(6) cmd(80081272){00} arg(ffffdab8) on /dev/hdb
  ioctl32(fdisk:4187): Unknown cmd fd(7) cmd(80081272){00} arg(ffffdab8) on /dev/hdd
  ioctl32(fdisk:4187): Unknown cmd fd(8) cmd(80081272){00} arg(ffffdab8) on /dev/sda
  ioctl32(fdisk:4187): Unknown cmd fd(9) cmd(80081272){00} arg(ffffdab8) on /dev/sdb
  ioctl32(fdisk:4187): Unknown cmd fd(10) cmd(80081272){00} arg(ffffdab8) on /dev/sdc
  ioctl32(fdisk:4187): Unknown cmd fd(11) cmd(80081272){00} arg(ffffdab8) on /dev/sdd

On running mdadm --assemble /dev/md0

  mdadm[4247]: segfault at 000000000000002c rip 000000000804b19e rsp 00000000ffffdb80 error 4
  mdadm[4253]: segfault at 000000000000002c rip 000000000804b19e rsp 00000000ffffdb80 error 4