[PC-BSD Testing] GRUBing around Multi-OS coexistence?

A.Yerenkow yerenkow at uct.ua
Wed Nov 26 23:09:16 PST 2008


On 27.11.2008 9:06, Walt Pawley wrote:
> At 7:18 AM +0200 11/27/08, A.Yerenkow wrote:
>    
>> On 27.11.2008 6:10, Walt Pawley wrote:
>>      
>>> ...
>>>
>>> Ubuntu apparently installs some version of GRUB perforce.
>>> ...
>>> I was able to make enough sense of
>>> the GRUB documentation to boot the first FreeBSD partition
>>> successfully (hd0,1,a). Great.
>>>
>>> At least it was until I attempted to boot the PC-BSD partition
>>> (hd0,2,a). GRUB complains that it can't mount the partition
>>> ...
>>>        
>> Did you have partition magik or something similar to create /boot in old
>> UFS?
>> I think it's common case:
>> http://unix.derkeiler.com/Mailing-Lists/FreeBSD/questions/2005-12/msg01429.html
>> Or you could try this:
>> http://www.linuxquestions.org/questions/bsd-17/grub-ufs-how-can-i-do-it-310769/
>>      
>
> As is typical for me these days, I still don't know why it's
> doing what it's doing but I've managed to get it working.
>
> I was able to get the FreeBSD 7 partition to boot with
>
> root (hd0,1,a)
> kernel /boot/loader
> boot
>
> as is recommended in quite a number of places. But this did not
> work for the PC-BSD 7.0.1 partition with (hd0,1,a) replaced by
> (hd0,2,a), like I believe it should have. After reading a bit
> from the above link, which didn't really tell me anything I
> hadn't already stumbled through (or so it seemed), I tried a
> desperation alternative. To wit:
>
> rootnoverify (hd0,2)
> makeactive
> chainloader +1
> boot
>
> I guess if one method doesn't work, the other one may, even on
> what is basically the same OS on two different partitions of
> the same drive. Curious.
>    
same OS not always same FS :)
Glad it works :)


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