Re: How to boot second grub?

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On Sat, 2005-04-30 at 11:23 -0400, av1@xxxxxxxxx wrote:
> Very sorry, my finger hit "send" too fast and I forgot to type a subject. 
> 
> I've been able to set up two FC3's with a single grub, but what I'd really 
> like to do is set up a second grub and have the first chainload to the 
> second. (I want to play with custom kernels on the second.) 
> 
> I have two ide's, hda and hdb. My first fc3 is on hda. I tried installing 
> the second fd3 with /boot on hdb1 and / on hdb2. I told anaconda to put the 
> second grub on the mbr and used the advanced bootloader screen to reorder 
> the drives so it would write it to hdb instead of hda. 
> 
> After installing, I went to my first grub.conf and added 
> 
>    title Second Fedora
>        rootnoveriy (hd1,0)
>        chainloader +1 
> 
> But when I reboot and select Second Fedora, I get Error 13 invalid or 
> unsupported executable format. What did I do wrong? What's the right way to 
> set this up? 
> 
>  --Cliff 
> 

Cliff:

	You need to have a copy of grub in the /boot directory (or / if you
didn't make a new /boot).

	assuming grub's hd1,0 is = to hdb1 you'll want to boot into your new
FC3 and perform grub-install /dev/hdb1

	You now won't be able to get to your old install, so you'll have to
boot a rescue cd, chroot into your old install, and perform the grub-
install to wherever that bootstrap is (/dev/hda is the MRB and the most
usual place).

HTH

Scott



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