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Re: dual boot : fed1 and fed2 no go



On Mon, 2004-05-24 at 15:53, john brennan-sardou wrote:
> hello,  
>     I try to be a cautious guy so before installing fedora 2 on test and 
> killing off fed 1 I decided to put it on my second disk and have a dual 
> boot. Well, I got grubbed. No surprise I suppose. Here is the grub.conf
> #boot=/dev/hda
> default=1
> timeout=10
> splashimage=(hd1,0)/grub/splash.xpm.gz
> title Fedora Core (2.6.5-1.358)
>     root (hd1,0)
>     kernel /vmlinuz-2.6.5-1.358 ro root=LABEL=/1 rhgb quiet
>     initrd /initrd-2.6.5-1.358.img
> title fedcore
>     rootnoverify (hd0,0)
>     chainloader +1
> When I boot into the old fed core one this is the message :
>   "  Error 13 Invalid or unsupported executable format "
> The name fedcore as you  can see is the first primary disk and fed 2 is 
> on the second. I know I should be reading the forty-five page doc on my 
> desk but I would feel better disposed to grub if I could get out of this 
> quick.My first disk is full of work material.  I have already tried the 
> LBA bios change on the mail list but  no joy. Thanks a lot John 
> Brennan-Sardou

Can you mount the old partitions under FC2?

Might try something along the lines of:

title FC1
    root (hd0,0)
    kernel /vmlinuz-<version> root=LABEL=/
    initrd /initrd-<version>.img

Getting ready to do very much the same thing on my main work machine. 
Just finished making a "clone" of FC1 on another disk and will try
booting to it before upgrading.  Have this working at home with FC1,
FC2, WinXP. Have used this technique successfully since RH7.x or so.





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