Re: FC6 grub problem...

[Paulo Cavalcanti]

I suppose the windows disk is the master, so it is hd0.
As a consequence, the linux disk is now hd1.
This way it will not boot in linux, unless you rewrite the MBR in the
windows disk with
grub-install, and change hd0 for hd1 in your old grub.conf.

I think that the easiest way is leaving the linux disk as master (hd0),
and switching the disks (logically) when booting in windows.
Generally, the choice of which disk to boot from can be made in the BIOS.

This way, your grub.conf remains the same and you just need to add this
part at the end:

title Windows XP
        map (hd0,0) (hd1,0)
        map (hd1,0) (hd0,0)
        rootnoverify (hd1,0)
        chainloader +1

FC6 grub problem...

[Darren Foster]

Hi,

Thanks for that.

Is this the reason I’m only getting a grub prompt?

And how do I change the grub.conf from the grub prompt?

I have used knoppix but it wont let me edit the grub.conf file…

Any ideas?

Sorry there are so many questions I’m learning all the time with fedora….

Darren

_____

From: [e-mail] [mailto:[e-mail]]
On Behalf Of Paulo Cavalcanti
Sent: 29 April 2007 14:58
To: [e-mail]
Subject: Re: FC6 grub problem...

I suppose the windows disk is the master, so it is hd0.
As a consequence, the linux disk is now hd1.
This way it will not boot in linux, unless you rewrite the MBR in the
windows disk with
grub-install, and change hd0 for hd1 in your old grub.conf.

I think that the easiest way is leaving the linux disk as master (hd0),
and switching the disks (logically) when booting in windows.
Generally, the choice of which disk to boot from can be made in the BIOS.

This way, your grub.conf remains the same and you just need to add this
part at the end:

title Windows XP
        map (hd0,0) (hd1,0)
        map (hd1,0) (hd0,0)
        rootnoverify (hd1,0)
        chainloader +1

FC6 grub problem...

[Timothy Murphy]

Darren Foster wrote:
> I have used knoppix but it wont let me edit the grub.conf file…

I've edited grub.conf with knoppix (many times).

Note that you may have to edit the "real" version of grub.conf
in /boot/grub/ rather than the soft link in /etc .