Boot Menu Damaged

[E. J. Cerejo]

----- Original Message ----- 
From: "Jerry McAllister" <jerrymc at msu.edu>
To: "E. J. Cerejo" <ecerejo at optonline.net>
Cc: <FreeBSD-questions at freebsd.org>
Sent: Monday, December 31, 2007 9:50 AM
Subject: Re: Boot Menu Damaged


> On Mon, Dec 31, 2007 at 01:17:51AM -0500, E. J. Cerejo wrote:
>
>> I'm running FreeBSD 6 stable and I lost my boot menu after reinstalling 
>> xp
>> and tried to fix it by booting with instalation cd and run "fdisk -B -b
>> /boot/boot0 /dev/ad0" it restored it but when I boot I get the mountroot>
>> prompt, it fails to mount ad0s2a, b, c, d.  Is it possible to fix this or
>> do I have to reinstall freebsd?
>
> It may be that you got the slices no longer marked as bootable.
> Try using fdisk(8) or boot0cfg(8) to re-enable booting on those slices.
>
> ////jerry

Do you run it from the instalation CD using fixit or run from the mountroot 
prompt on the computer.  It seems to me I can't can any commands from this 
prompt.