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From: terry@thisbe.npd.Novell.COM (Terry Lambert)
Newsgroups: comp.unix.bsd
Subject: Re: installing 386bsd and dos on IDE-drive >1024 cyl ?
Message-ID: <1992Aug24.180613.6858@gateway.novell.com>
Date: 24 Aug 92 18:06:13 GMT
References: <1992Aug24.173722.11362@bigcomm.gun.de>
Sender: terry@thisbe (Terry Lambert)
Organization: Novell NPD -- Sandy, UT
Lines: 47
Nntp-Posting-Host: thisbe.eng.sandy.novell.com

In article <1992Aug24.173722.11362@bigcomm.gun.de>, ado@bigcomm.gun.de (Christoph Adomeit) writes:
|> Hi,
|> 
|> I have the same IDE-Drive Translation Mode problems that were described
|> here very often. I could install 386bsd however, when I installed it on
|> the whole disk, even in translation mode.
|> 
|> But I still need a dos-partition. I could setup the real drive geometry for
|> my ST1239A, which is 1272 x 9 x 36, and hope I could install 386bsd in a
|> partition then. But, what will happen with DOS (5.0) ? As far as I know,
|> it only supports 1024 cylinders. Must I waste the last 248 cylinders ?
|> As far as I know, even the bios does not support more than 1024 cylinders.
|> Or should I install DOS within the first 1024 cylinders and 386bsd in the 
|> rest ? Do you think it is possible to also install SCO-Unix in a third boot
|> partition and swith all OS e.g. by a boot-switch program like os-bs ?

1)	Setup for the real geometry of the disk.
2)	Modify asboot to look at where you will be putting your 386BSD partition
	(it currently believes it should be the first one).
3)	Make a new dist.fs disk (from an old dist.fs disk):

		strip 386bsd		# My new kernel
		mount /dev/fd0a /mnt
		rm /mnt/386bsd
		cp 386bsd /mnt
		sync
		umount /mnt

4)	Install DOS on the front of the disk.
5)	Install 386BSD with your new dist.fs.

WARNING: This is not for the faint of heart, as it involves installing 386BSD
twice, the first time on the whole disk simply to build a kernel for the second
installation.

Note:  Modification of asboot to look at the driver partition table is to be
forthcoming, but don't bug me for it; I'll post a patch here and a dist.fs to
agate when I'm done.


					Terry Lambert
					terry_lambert@gateway.novell.com
					terry@icarus.weber.edu

---
Disclaimer:  Any opinions in this posting are my own and not those of
my present or previous employers.