Multiple ubuntu installs

[farrinux]

Question Guys. I would like to try LinuxCNC out on live cd and if I like it, would like to install it. I know that the newest release is built around Ubuntu 10.04LTS. The machine I would install it on is currently dual booting Win7 and Ubuntu 11.10. Can I go ahead and install this alongside whats there with out hosing Grub or is there going to have to be a pecking order. By this I mean Loading Win 7 then linuxcnc (Ubuntu 10.04) and then Ubuntu 11.10.

[gordintoronto]

I have a similar setup. If you install 11.10 last using the normal approach, it will have control of the Grub. The only quirk is, if you get a new kernel in 10.04, you need to boot 11.10 and run sudo update-grub to make the new 10.04 kernel available.

Or you can just wait until there's a kernel update in 11.10, at which point update-grub is run automatically.

[Cheesemill]

Or when you install LinuxCNC you can choose to install its bootloader to its own / partition instead of the MBR, then just run 'sudo update-grub' from your Ubuntu install to add it to the main grub menu.

Using this method each linux install looks after it's own grub settings which avoids the quirk mentioned above.

[farrinux]

Thanks Guys! Appreciate the response was not sure just exactly what to do. Better off getting a little help than hosing everything up just to learn! Again Thanks.