On Mon, Oct 14, 2013 at 5:41 PM, T.C. Hollingsworth <tchollingsworth@gmail.com> wrote:

You can already install Fedora directly onto a USB drive using
anaconda and any filesystem it presently supports.

It uses GRUB by default, and that usually will work with most modern
systems. But if you want something more lightweight, use ext4 as your
filesystem

The life of such flash drive (a pen drive, which has no TRIM support) will be very low, SPECIALLY using a journaling file system.

Ext2 with very large cache and lazy writes IMHO would be the only sensible option. But then F2FS is specially designed for flash storage... so I guess it's a matter of waiting for F2FS to mature.... :-/

FC