Triple boot - Ubuntu Feisty (7.04) Dapper (6.06) and Windows XP (P4)

[Eric Dunbar]

Hello all:

I've "lost" my "main" Ubuntu 6.06 (Dapper) install from the Grub boot
menu. I have two HDs, one for Windows XP and one for Ubuntu.

My Ubuntu 6.06 was set up with a /boot partition. My Ubuntu 7.04 was
not (just /).

When I set up my current configuration* I left 7.8 GB free on my
Ubuntu disk for experimental OSes. I've wanted to see what Ubuntu 7.04
would look like so I installed it into that free 7.8 GB partition.

Unfortunately, I didn't realise that grub doesn't automagically handle
multiple Linux OSes gracefully (I come from the PPC world where yaboot
handles OSes differently). I've lost access to my Ubuntu 6.06
partition and would like to regain it _and_ retain easy access to
Ubuntu 7.04 as well, if at all possible.

Can anyone suggest a Howto or link or wiki where I can go for further
assistance in setting grub up so that it can handle my two Linuxes
without excluding one (I haven't gotten anywhere yet with Google)? I'm
scouring the man pages for grub but haven't found out how to specify a
"chain loader" for a linux (I figure that's what I need to do).

Thanks, Eric.

*Two HDs:
sdb = 20 GB
/dev/sdb1 Windows XP

sda = ~250 GB
/dev/sda2 19 GB Ubuntu 6.06
/dev/sda3 202 GB ext3 formatted "Virtual Machine" partition (contains
VMs for VMware)
/dev/sda6 7.8 GB free

(plus, some other partitions like /dev/sda1 89 MB for /boot for Ubuntu
6.06 and /dev/sda5 1.5 GB for /swap)