Re: uuid changes- not updated in grub2

Bruce Marshall wrote:

> 
> Grub2 has problems with uuid's.   I recently installed the grub2 pkg on 
> jaunty 
> and it changed the:
> 
> uuid  <long string for uuid)
> 
> in grub1's menu.lst to:
> 
> root  <same long string for uuid>
> 
> in both the menu.lst and in the grub.cfg files.
> 
> This left my machine unbootable.   
> 
> I have reported this bug which was a dupe of a similar bug.   Just a warning 
> to those who might want to try grub2 but still keep grub1 working.
> 

Jonas, the grub2  setup mechanism appears different in Hardy and Karmic.
I do not have Jaunty to know how it works. But have you done

'sudo update-from-grub-legacy'

It will do no harm if you do these before update-from-legacy

sudo update-grub
sudo grub-mkconfig


Jonas, my grub.cfg appears like this

in Karmic
menuentry "Ubuntu, Linux 2.6.31-4-generic" {
        set root=(hd0,5)
        search --no-floppy --fs-uuid --set 79c013db-b497-4cba-a693-02317cf22c13
        linux   /boot/vmlinuz-2.6.31-4-generic 
root=UUID=79c013db-b497-4cba-a693-02317cf22c13 ro   quiet splash
        initrd  /boot/initrd.img-2.6.31-4-generic
}

and in Hardy
menuentry "Ubuntu, linux 2.6.24-24-generic" {
        linux   (hd0,8)/boot/vmlinuz-2.6.24-24-generic 
root=UUID=606840d0-3e10-4e6b-9aba-c445d082832b ro quiet splash
        initrd  (hd0,8)/boot/initrd.img-2.6.24-24-generic
}

Both works.


My '1st grub' grub.cfg is a simple
menuentry "Kde4   " {
        configfile (hd0,5)/boot/grub/grub.cfg
}

menuentry "Cos  " {
        set root=(hd0,2)
        chainloader +1
}


Note: configfile to grub2 boots and
       chainload to grub legacy and windows boots

       Grub2 naming convention is now (hd0,x) for sdax
       unlike grub legacy where (hd0,x) is sda(x+1)


Regards,
Goh Lip


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