Fedora 3 on external USB drive...
What follows is pure conjecture. Wait for additional input from others on this site unless you are inclined to experiment!
It would probably behoove you to get a program like System Commander to handle launching your USB Fedora installation if your computer bios provides for it.
If you can swap your drives, it will be easier to make sure your Fedora install is set up correctly. Can you do your project this way? If so, you may want to consider doing so instead of using the USB drive.
You should have available a "rescue disk" or a floppy "boot disk" before messing with your grub.conf files! You may need to restore your grub.conf file using your backup grub.bk file if your system won't boot!
I suggest you use your Fedora installation on the computer to take a look at your /boot and /boot/grub files. BACK UP YOUR grub.conf FILES BEFORE EDITING ANYTHING. "cp /boot/grub/grub.conf /boot/grub/grub.bk" It seems your grub.conf on the computer should offer a boot option when you start the computer for your usb device. I am not a guru here, but it seems to me you would want to add a section (after your last linux option, if you have more than one kernel version to optionally load from your computer's Linux installation), before the chainloader for MS Windows if you have a dual boot situation.
title Fedora Core (2.6.16-1.2096_FC5)#or your kernel version#root (hd0,0)
kernel /vmlinuz-2.6.16-1.2096_FC5#or your kernel version# ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.16-1.2096_FC5.img#or your initrd version#
Notice the caveat - I am not sure about this, only guessing. Also, check your /etc/X11/xorg.conf settings to make sure they are correct for your monitor and video card. Finally, regarding your bios capabilities. If there is not an option to specifically boot from an external device, or devices - you may not be able to boot from the USB no matter what else you do.
Last edited by svarmido; 05-04-2006 at 01:53 PM.