When installing ubuntu 9.10 karmic koala will grub2 work together with grub legacy

[Goh Lip]

user1 wrote:
> On Friday 30 October 2009 06:08:58 pm Goh Lip wrote:
>> bqz69 wrote:
>>> I have just installed ubuntu 9.10 on a pc, and grub2 worked perfect, and
>>> made a grub2 login menu with my two other OS (wxp and 8.04), so I can
>>> choose which of the three OS to login to at boot time
> 
> It did not work when I installed 9.10 on my other pc, a laptop. grub2 did not 
> find any other OS, probably because they are all on encrypted partitions except 
> the /boot partitions which are all on their own unencrypted partitions of 100 
> mb
> 
> I fixed it, and here is an example for ubuntu 9.04 with /boot on sda7 and / on 
> sda8:
> 
> I took the menu content lines from the /boot/grub/menu.lst of the 9.04:
> 
> title		Ubuntu 9.04, kernel 2.6.28-11-generic sda7 enc 959
> uuid		da9ce616-b91d-4428-8987-28eac900f328
> kernel		/vmlinuz-2.6.28-11-generic root=/dev/mapper/sda8_crypt ro quiet splash 
> initrd		/initrd.img-2.6.28-11-generic
> quiet
> 
> and changd them into:
> 
> menuentry "ubuntu 9.04 sda7/8" {
> set root=(hd0,7)     
> search --no-floppy --fs-uuid --set da9ce616-b91d-4428-8987-28eac900f328
> linux /vmlinuz-2.6.28-11-generic root=/dev/mapper/sda8_crypt ro quiet splash
> initrd		/initrd.img-2.6.28-11-generic
> }
> 
> and then copied it into /etc/grub.d/40_custom and then ran "sudo update-grub" 
> (which transfers it into /boot/grub/grub.cfg) this file must not be edited by 
> hand.
> 
> Then I went to the /etc/default/grub file, and changed 2 lines:
> 
> from:
> GRUB_HIDDEN_TIMEOUT=0
> GRUB_HIDDEN_TIMEOUT_QUIET=true
> 
> to:
> #GRUB_HIDDEN_TIMEOUT=0
> GRUB_HIDDEN_TIMEOUT_QUIET=false
> 
> Then I ran "sudo update-grub" again, and then ubuntu 9.04 appeared in the 
> grub2 bootloader menu, and could be started as normal.
> 
> I am not sure if the second line above "set root=(hd0,7)" is necessary, 
> because I first inserted it as "set root=(hd0,1)" and it still worked??
> 
See
http://bbs.archlinux.org/viewtopic.php?id=64545

but I think it should be okay to set root to /boot partition.
I don't have separate /boot partition so I am not 100% sure.
Obviously works in your case.

UUID no "da9ce616-b91d-4428-8987-28eac900f328", please get back if this 
is for sda7 (/boot) or sda8 (/) ?  (check with sudo blkid) This may 
overide your set root (hd0,1).

Please get back to me. I like to know if this is the case.

Regards,
Goh Lip