I do agree with cowboy (To a point) If you are not familiar with the the way that grub2 installs then by all means DO disconnect your other drives, But that gets old ,Always, When installing a new nix choose "manual install" and this is What I have come to learn is # Write down your drives as named in Gparted, grub or bios, remember your default boot drive in bios (this is important) when installing a "new" "nix" "Do not install grub to that (Your default drive) drive (on your new install) At the end of the installation at the last screen there is a "Advanced" button click that and install the new grub to the drive you are installing to < exp. installing to sda5 <install grub to this drive, (You do this so that at any time if your default boot fails, You can go in to "bios " and boot from any installment !! after install, you must boot to your default boot drive and " sudo update-grub " then reboot to the new install, you must also do this with any kerrnal and or header updates, I am currently running 6 NIX's , Grub2 On Ext4 F/S and have no problem with anything but Ultimate Edition 2.6 Updates,(NOT the Fault of Ultimate Edition Or TheeMahn in any way !!) I really think they "SMOKE" There lunch at Canonical !!!
Any who,at any "nix" Boot or makeyousoft bimbows you will be able to access any of your other hard drives via "Places" in your tool bar ! or at the " grub boot screen " !!! I hope this is what you are looking for ,And I hope it helps; If you have any questions or comments on this, Please post back as I am anxious to here from you !
Ultimate
Ultimate-E
Onyx 64 Pentium 4 processor
2x512 Kingston DDR memory
Maxtor Diamondmax 500 gig
Maxtor Maxline 80 gig, Split for testing only !
Maxtor Diamondmax 500 gig, Storage
ATI 9600 series (RV350 AQ)graphics card
Sony DVD/CD Rewritable Drive DOUBLE LAYER DRU-820A/Sony DRU-800A CD DVD±RW Dual DVD Recorder
http://www.ultimateeditionoz.com/