adding freebsd boot to grub

[Desmond Lee]

Hey Josh

Thanks for your help. I just reinstalled freeBSD 4.8 all over again (I
think it's cause some how it got messed up). I then typed in the
following at the grub command line.

grub> rootnoverify (hd1,0)
grub> chainloader +1
grub> boot
-or- (this one's better)
grub> root (hd1,0,a)
grub> kernel /boot/loader
grub> boot

It's pretty much the same thing that you said, except it only works if
you change the 1 to a zero for the (hd1, 0, a) instead of (hd1,1,a). I'm
guessing that you can also modify the grub to have an extra option in
there that does the commands that you specified above. All you have to
do is modify the file the grub looks to when trying to find out what os'
are present in the hard disks?

Thanks again.


Desmond



-----Original Message-----
From: owner-freebsd-questions at freebsd.org
[mailto:owner-freebsd-questions at freebsd.org] On Behalf Of Joshua Oreman
Sent: Wednesday, September 03, 2003 12:47 PM
To: Desmond Lee
Cc: questions at freebsd.org
Subject: Re: adding freebsd boot to grub

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
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