In Windows, 'removable' drives cannot be partitioned, without the partitions not appearing and receiving drive letters, apart from the first partition. Partitioned flash drives work fine in Linux.
What I want to do is partition a 8GB flash drive into two, with the first partition containing various boot disc images, which can be selected to boot from, and have various portable apps, documentation, utilities, scripts, etc, on the other partition.
I currently do this using two separate flash drives, but I want to be able to use a single flash drive for everything, which I keep on my keyring. It is not possible to do this without having at least two partitions, as the ISO boot selector for the boot disc images will not work otherwise.
I know there is a method where you can flip a bit, using Lexar's USB Format Tool, which fools Windows into thinking that the partitions are on a fixed hard drive. However, this apparently makes it difficult to eject the flash drive.
Flash drives with U3 from SanDisk had two partitions, presenting itself to the host system as a USB hub with a CD drive and standard USB mass storage device attached. This is what I would like to emulate, if possible.