creating install media (usb) under ubuntu 13.10?

[Mayuresh Kathe]

hello,

i am migrating from ubuntu 13.10 x86-64 to freebsd 10.

have tried 'dd' as well as _startup_disk_creator_ to create the install 
media for the usb based install, failed.

i have double checked to ensure that i really do have the usb stick 
image and not an iso. :)

can someone please point me in the right direction for help with 
creating freebsd 10 usb install media under ubuntu 13.10?

thanks,

~mayuresh