Steps to make one with an .iso image in say, /home/dean.
- Format USB Drive. For Gnome users, open Disk Utility, unmount drive if mounted, and format.
- Then, open up root terminal (or invoke sudo/su privileges) and type
dd if=/home/dean/nameOfISO.iso of=/dev/sdX bs=4M; sync
That’s it! (Replace the X in sdX with the corresponding letter (it was /dev/sdb for me: check to make sure; Gnome users can go to the Disk Utility to see.)
Thanks goes to the Debian Website.