[Gllug] Disappearing drive device (PATA)

[Adrian McMenamin]

On Sun, 2008-04-27 at 09:51 +0100, John Winters wrote:
> Adrian McMenamin wrote:
> > I have a box with the /boot partition on /dev/hda1 - the BIOS sees it
> > and the grub menu, which lives there, comes up at boot time.
> > 
> > But then the boot sequence reports /dev/hda1 cannot be found and that I
> > should use fdisk on it. Fdisk cannot find it, indeed there appear to be
> > no device nodes for any /dev/hda* devices at all.
> 
> Have you tried manually creating /dev/hda and /dev/hda1 and seeing 
> whether the device is then accessible?  This test would determine 
> whether the problem lies in the node creation or the access to the device.
> 
> # mknod /dev/hda b 3 0
> # mknod /dev/hda1 b 3 1
> # fdisk -l /dev/hda
> 
> or alternatively you should be able to do just:
> 
> # fdisk -l /dev/.static/dev/hda
> 
> Try that and let us know the results.
> 

Thanks for this, as it helped me uncover that the mystery disk is
actually being mapped as /dev/sdc* - to be honest I am not sure whether
it was PATA or SATA, (though I do think PATA) I'd have to have a look
inside to remind myself, but obviously there is something broken in the
Ubuntu upgrade one way or the other and I ought to file a bug (I could
also spool though old backups to see how it was all handled under 7.10
if I can be bothered)

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