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Date: Wed, 3 Sep 2003 12:47:21 -0700
From: Joshua Oreman <oremanj@get-linux.org>
To: Desmond Lee <desmond.lee@shaw.ca>
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References: <000201c3724f$e9abd040$6501a8c0@croydon>
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cc: questions@freebsd.org
Subject: Re: adding freebsd boot to grub
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On Wed, Sep 03, 2003 at 12:16:39PM -0700 or thereabouts, Desmond Lee wrote:
> Hello
> 
> I was originally running win98 and freebsd4.8 on a box with 2 hard
> drives. 1 disk had win98 and the other had freebsd. Everything worked
> fine. But I then installed redhat 9.0 on the first disk with win 98. Now
> the Grub only knows how to boot dos and linux, but no freebsd. There is
> a article about this on the freebsd page:
> http://www.freebsd.org/doc/en_US.ISO8859-1/articles/multi-os/ch3.html.
> This is almost the same scenario as me. However, I do not want to do a
> complete install of all 3 operating systems. Is it possible to just
> reinstall freebsd on my 2nd hard drive again and get grub to recognize
> it is there?

See what "DOS" and "Linux" do.

If one of those actually boots FreeBSD, rename it.

If not, do this at the grub> prompt (assuming your FBSD slice is (hd1,1) in GRUB):
grub> rootnoverify (hd1,1)
grub> chainloader +1
grub> boot
-or- (this one's better)
grub> root (hd1,1,a)
grub> kernel /boot/loader
grub> boot

-- Josh