Lost MBR/wrong disk geometry

[Jeremy Faulkner]

Erik Norgaard wrote:
> Hi,
> 
> It appears that I have screwed my disk (60GB) thoroughly. I had used the 
> sample install.cfg for sysinstall but it has "partition=exclusive" and 
> not "all". I did
> 
>   dd if=/dev/zero of=/dev/ad0 count=1k
> 
> as explained in the faq, and the exclusive partioning was gone.
> 
> I can run sysinstall, slice up the disk and install stuff. But on reboot 
> the system doesn't find a usefull mbr.
> 
> I can boot up a rescue disk, mount the partitions, read data stored and 
> use any programs installed. But I can't recover or create a new mbr with
> 
>   dd if=/boot/mbr of=/dev/ad0
> 
> or with /boot/boot0, or use fdisk to manually set slices and active 
> slice, run sysinstall and choose a bootmanager or similar.
> 
> Please, how to I get back an mbr and a working partition table?
> 
> Thanks!
> 
> Cheers, Erik
> 

'fdisk -B' didn't work?

-- 
Jeremy Faulkner	<gldisater at gldis.ca>
Resume:	http://www.gldis.ca/gldisater/resume.html