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Date:      Wed, 20 Mar 1996 14:27:00 -0800 (PST)
From:      "JULIAN Elischer" <julian@ref.tfs.com>
To:        dave@kachina.jetcafe.org (Dave Hayes)
Cc:        andreas@knobel.gun.de, freebsd-hackers@freebsd.org
Subject:   Re: Adding a damn 2nd disk
Message-ID:  <199603202227.OAA17542@ref.tfs.com>
In-Reply-To: <199603202044.MAA05712@kachina.jetcafe.org> from "Dave Hayes" at Mar 20, 96 12:44:16 pm

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> 
> 
> Andreas Klemm <andreas@knobel.gun.de> writes:
> >Well, although I knew directly, that I have to fiddle around with
> >disklabel, I'd suggest to people like you, to first do the most
> >obviuos thing ... check the manpages.
> 
> I *did*. 
> 
> >One look in /etc/disktab shows you what to do next, or not :->
> 
> But sysinstall doesn't *use* disktab...at least from what I 
> could figure out. Even if it does (hidden in there somewhere),
> it sure doesn't leave an entry in the table after it is done.
> 
> >If you don't get the geometry of your SCSI disk, then please
> >compile your kernel with the option 'SCSI_REPORT_GEOMETRY'

In fact this is WRONG WRONG WRONG
you should use the BIOS trnaslated geometry if you want to ever boot
of this drive....
(real geometry is only good if the BIOS will never look at the drive)

> 
> Hmm. Why isn't the default kernel configured to do this? 
> I knew not about this option, which makes sense. 

It's not useful info.. ignore it..
use the -v boot option to see the BIOS geometries
but remember that freeBSD has no way of knowing which geometry coresponds to
which disk, which is why it can't use that info easily..

> 
> But the problem is, fdisk doesn't seem to enable disklabel to
> do it's job. 

can you say more? did you try rebooting between the two?

> 
> >Note, that I now have to swap areas for delayed paging, it's
> >nice to distribute the swap load to two disks:

I hope neither swap is at the front of a disk




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