crwdns2934241:0crwdne2934241:0 revher
crwdns2934249:0crwdne2934249:0:
Your external device should be recognized by the "Bios" or "UEFI" at startup. You can probably click on Esc at startup and ask to boot from you external device.
crwdns2915684:0crwdne2915684:0:
open