when i hold down alt/option, i just get a blank white screen and a cursor, no options for boot devices, internal drive has no os on it and am trying to boot from a usb
crwdns2934109:0crwdne2934109:0
crwdns2934065:0crwdne2934065:0: 479.6crwdns2936485:0crwdne2936485:0
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Depending on the version of OS-X/macOS your system is running you may not have that option as your system firmware doesn’t have that feature enabled.
The OS updater will often update the firmware.
crwdns2934105:0crwdne2934105:0
crwdns2936751:024crwdne2936751:0 0
crwdns2936753:07crwdne2936753:0 0
crwdns2936753:030crwdne2936753:0 1
crwdns2942667:0crwdne2942667:0 24
