7 Replies Latest reply: Nov 21, 2012 8:43 AM by mende1
v.alessandro Level 1 Level 1 (0 points)

USB boot not seen (by "ALT" key hold-clicking during the boot).

While i hold ALT key in the boot, I see the System HD and the RECOVERY HD.

Eventually  the DVD image/drive, but i don't see a valid USB boot IMAGE (Never).

 

 

Would like to boot an UBUNTU image.

but, even if i made all procedures according ubuntu specific (http://www.ubuntu.com/download/help/create-a-usb-stick-on-mac-osx),

my usb pen is not seen in the boot phase.

 

Thanks.


iMac, OS X Mountain Lion (10.8.2)