Re: [gentoo-user] grub hell

[Mick]

On Tuesday 13 November 2007, maxim wexler wrote:
> --- Dan Farrell <dan@×××××××××.cx> wrote:
> > On Mon, 12 Nov 2007 15:27:55 -0800 (PST)
> >
> > maxim wexler <blissfix@×××××.com> wrote:
> > > > rootnoverify (hd1,0)
> > > > map (hd1)(hd0)
> > >
> > > Error 11: Unrecognized device string
> > >
> > > Press any key to continue...
>
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> > do you have a space in between (hd1) and (hd0) in
> > map (hd1) (hd0)
> > 			?
>
> space or no space makes no difference.
>
> The thing is, tab completion finds only hd0 which grub
> doesn't seem to realize is the SECOND drive. Using hd1
> gives error 21: Selected disk does not exist. Although
> it appears in device.map, dmesg, fdisk etc.
>
> Maybe it's a bug in grub.Gonna send a note to
> bug-grub@×××.org see what happens.

I am not sure if you have tried this or not, but when you map one drive to 
another {say: map (hd0) (hd1)}, you also need to map the second drive to the 
first, instead of leaving it hanging.  So, the complete entry becomes:

map (hd0) (hd1)
map (hd1) (hd0)

If this doesn't work you may want to try the hide command.  Hide all the other 
bootable partitions but the one you intend to boot:

unhide (hd1,0)
hide (hd1,0)
rootnoverify (hd1,0)
map (hd0) (hd1)  <--These two may or may not be
map (hd1) (hd0)  <--needed with un/hide command
makeactive
chainloader +1

It is also a good idea to only have the bootable flag set with fdisk on the 
WinXP partition (Linux /boot doesn't need it anyway).

Finally, you could also try changing the device map from  (hd1) /dev/hdc to 
(hd2) /dev/hdc.

HTH.
-- 
Regards,
Mick