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Re: unbootable system after fresh 4.0r5 installation

On 2008-12-05 17:27 +0100, Jukka Salmi wrote:

> I just installed Debian 4.0r5 on a i386 systems (Dell PowerEdge 2950).
> While the installer seemed to have succeeded without problems, the
> freshly installed system didn't boot because its root file systems could
> not be found:
> 	Begin: Waiting for root file system... ...
> 	[...]
> 	sd 3:0:0:0: Attached scsi removable disk sdb
> At this point the system hanged for some minutes, until
> 	ALERT! /dev/sdb3 does not exist. Dropping to a shell!
> was output and the BusyBox shell was executed.
> But indeed there is no /dev/sdb; there's only one (logical) disk
> present, /dev/sda.

How many physical discs does the system have (removable and
non-removable)?  And do you know the kernel versions in the installer and
the installed system?

> While the installer was running I ran `fdisk -l /dev/sdb' and saw the
> partitions I created.  (I don't know what the installer kernel thought
> /dev/sda was.)  Reading /etc/fstab and /boot/grub/menu.lst after the
> failed boot, it seems that for some strange reason the whole system was
> installed to /dev/sdb.  Fixing these files (sdb -> sda) and running
> update-grub(8) resulted in a bootable system.
> Befor debugging this further: is this a known problem?

Kind of, I guess.  The device naming of the kernel is not static; the
Lenny installer addresses this by using UUIDs in fstab and grub.


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