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Re: SCSI/IDE Drive number ordering

From: Christoph Plattner
Subject: Re: SCSI/IDE Drive number ordering
Date: Wed, 14 Nov 2001 23:31:21 +0100

I want to add to this mail .....

... your bios has probably an option which says "SCSI drives are first",
and using the GRUB shell, it is useful and in some cases necessary to
define a device map file. I have the same config, booting from SCSI
and using additional an IDE disk.

My device map is for example ...

(hd0) /dev/sda
(hd1) /dev/sdb
(hd2) /dev/hda

and the file is searched under /boot/grub/device.map by default
you must it specify by an option of the GRUB shell).

With this setup (BIOS: SCSI before IDE) and the device map file, you
a consistent view of the drives ....

With friendly regards
Christph P.

Mathieu Chouquet-Stringer wrote:
> address@hidden (Joe Krahn) writes:
> > I installed a IDE drive to a system that boots from a SCSI disk. This
> > causes GRUB to increment all SCSI disk numbers. Not exactly a bug, but I
> > think GRUB should have seperate nomenclature for IDE/SCSI. (For example,
> > in IRIX a disk is pci(0)scsi(0)disk(1)rdisk(0)partition(0))
> > The 'detailed' specification could be optional. There should at least be
> > a flag for "SCSI drives are first".
> Sadly, GRUB uses the BIOS to get the drive list and I don't think there are
> any ways to know wether a disk is scsi or ide... Moreover, your bios has
> probably an option which says "SCSI drives are first".
> --
> Mathieu Chouquet-Stringer              E-Mail : address@hidden
>     It is exactly because a man cannot do a thing that he is a
>                       proper judge of it.
>                       -- Oscar Wilde
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