Lost boot from USB option

[bartlett]

Does something in iBoot or multibeast affect the system at the bios level? When I try to change my boot device, the internal HDD and the DVD player both come up to boot from, but my USB drive is no longer recognized by the BIOS. I am trying to restore a partition from an external hard drive with a linux distro I have on the flash drive. I have looked through the bios and cannot find an option to disable or enable USB booting.

I have a Toshiba Qosmio F55, bios version 2.10

Thanks

 

[bartlett]

I was reluctant to do so in case it would break my OS-X install, but I did a restore defaults in the BIOS and the option to boot from my USB drives returned. Not sure where in the process this got disabled, but my OS-X still seems to be running stable.