*BSD News Article 27654


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From: xjam@ginkgo.CS.Berkeley.EDU (The Crossjammer)
Newsgroups: comp.os.386bsd.questions
Subject: Stupid Partition Tricks
Date: 22 Feb 1994 18:53:34 GMT
Organization: University of California, Berserkeley
Lines: 30
Message-ID: <XJAM.94Feb22105334@ginkgo.CS.Berkeley.EDU>
NNTP-Posting-Host: ginkgo.cs.berkeley.edu

Well, after trashing my partition record twice I guess I should ask and see
if anyone else has done this.

I have a nice big 1 gig scsi drive with a Buslogic 747s controller. Most of
it is devoted to (gasp) Linux. However, I'd like to turn over a 200 meg
partition to NetBSD which lives on my IDE drive.

Now, having read the FAQ numerous times, I've tried unsuccessfully to
disklabel the SCSI drive. Each time though, all I've managed to do is swack
the partition table on the drive. The controller is clearly doing geometry
translation for me and it's cylinder indexing starts at 1. However, all my
current partitions leave cylinder 1 alone since the partition table is on
there and I get all sorts of complaints from Linux's fdisk, and pfdisk about
non-cylinder boundaries.

If any partition wizards have seen and solved this type of behavior let me
know if any of these solutions are possible:

1. Turning off the geometry translation of the 747s
2. Inducing disklabel to write the disklabel in the correct place.
3. Faking out my AMI bios so that NetBSD uses the right geometry.

Thanks!

--
xjam@cs.Berkeley.EDU	"They can't come on and play me in prime time, 
			 Cause I know the time, cause I'm gettin' mine
Gotta have house...	 I get on the mix late in the night..."