Rather obscure question regarding boot options

[Capnboost]

First of all, I scanned the stickies and I'm not completely new to backtrack or linux.

My evil plan is to "hack" a USB hub & a small usb drive in to the chassis of a laptop. After that, I'll dualboot 7 pro, and some flavor of linux. I have no doubt that grub will handle this (dualbooting) without issues. My question is how do I then boot Backtrack 4 from the internally "mounted" flash drive.

I don't want it necessarily to show up as a boot option on the grub main page, but I would like to use grub to load backtrack. I don't want to have to go in to the bios every time to switch back and forth.

[Barry]

You'd boot it just like you'd boot any other hard drive with grub. Grub doesn't care if it's a usb drive, ide drive or sata drive.

[Capnboost]

Would the stick (configured correctly) show up as hd1,0?

[Thorn]

Would the stick (configured correctly) show up as hd1,0?

It will depend on what order the BIOS sees the drives. If the BIOS sees the USB flash as the second HD, then it should be hd1,0.