Good day. The preferred method from alot of distro’s of Linux recommend using the program unetbootin to create the USB Bootable drive (from an .iso file). However, I seem to have some bad luck with this, as it will run and create the USB bootable device, however upon trying to boot from it I only see “unetbootin default” as two entries in the boot list. This fails miserably and sends one into the recovery cli window.
Another recommended way to fix this, is to use DD to transfer it. This is accomplished with a command like the one below. (Of course, use the proper name/location in your case):
dd if=~/Desktop/ubuntu-12.04-desktop-i386.iso of=/dev/sdb1 oflag=direct bs=1048576
If you get an authorization error, then you don’t have enough permissions, so pre-pend the word sudo to the command line. sudo dd ....