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Date:      Thu, 8 Feb 2001 07:13:26 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        mwm@mired.org (Mike Meyer)
Cc:        chat@FreeBSD.ORG
Subject:   Re: Support for FreeBSD in an extended slice.
Message-ID:  <200102080713.AAA07197@usr08.primenet.com>
In-Reply-To: <14978.16659.207713.3575@guru.mired.org> from "Mike Meyer" at Feb 08, 2001 12:47:47 AM

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> People blunder by -questions fairly regularly asking what they need to
> do to put FreeBSD in an extended partition. From the looks of things,
> about 90% of the work to do that has been done. All that's missing is
> fdisk support for extended partitions to create it, and boot
> support. Anyone one to comment on how hard those two things would be?

Creating the partitions and putting Berkeley disktabs on them,
and newfs'ing them is trivial; probably less than a couple dozen
lines of code changes.

The big problem is that the BIOS and the default PC MBR can't
handle booting from them.  Most MBR's can't, since there is no
real standard way of marking the thing active (which is the only
way to tell a root partition from a data partition, among other
things).

If you get all that sorted out, you still have to figure out how
to mount the thing as root (which is less trivial than a dozen
lines of code, but quite possible -- might even result in some
code cleanup that's been asking for it for a long time).


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.


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