From: Kai Petzke (wpp@marie.physik.tu-berlin.de)
Date: 02/09/93


From: wpp@marie.physik.tu-berlin.de (Kai Petzke)
Subject: Re: How to Setup 2 Disks, 1 for DOS & 1 for Linux?
Date: 9 Feb 1993 18:37:11 GMT

In <1l8nqp$2c4@agate.berkeley.edu> forrest@nobozo.CS.Berkeley.EDU (Jon Forrest) writes:

>I have two Fuji 2246 150Mb ESDI disks hooked up to a Adaptec 2232B controller.
>One disk has DOS/Windows. The other disk, which works fine from DOS,
>I want to use exclusively for Linux.

>I booted from the A1 disk but the only disk that is recognized is
>the DOS disk (as shown by the partition type which is DOS 16BIT FAT).
>What kind of partition does the second drive need to be recognized
>by Linux? I'm expecting to see /dev/hdb2 (is this right)? I suppose
>I could disconnect the DOS disk and make the Linux disk drive C but
>I'd rather not do this if possible.

>It appears from reading the FAQ that most people try to combine
>DOS and Linux on the same disk. I didn't see any mention of how
>to setup one whole disk for DOS and one whole disk for Linux.

That means, you fdisk'ed your second disk from DOS before, and this
is that Linux finds: a DOS disk. You can check, that this is true, by
mounting the second disc:

mount -t msdos /dev/hdb1 /mnt

and trying "ls /mnt" or stuff like this, if the mount succeeded.

So, when you install Linux, use fdisk /dev/hdb, delete the DOS
partition (there is one partition table for each disk) and create
one or more Linux partitions. The first Linux partition will be
/dev/hdb1.

The bigger problem is to boot from the second disk. Perhaps you
want to try to boot linux from DOS. Shoelace would fit into the
boot sector of your first disk, but it won't recognize your
second disk, as far as I know. Maybe you have to set up one small
Linux partition on your first disk as well. Do this, *** before ***
you install Linux on your second disk, and you can back up your
first disk to your second.