I need to boot a linux CD over USB...possible?

[TXBDan]

In order to update the firmware on my Crucial M4 SSD, i need to boot the utility from a linux boot disc image that they provide. I have no internal CDROM drive and only have an external USB one.

Is there anyway i can boot this disc or the image in some way so i can update the firmware?

Apple apparently doesn't think we're old enough to handle booting non OSX discs over USB... 🙄

 

[maflynn]

Hold the option key down while it boots. That should give you the ability to choose what to boot up

 

[dgbowers]

Hold the option key down while it boots. That should give you the ability to choose what to boot up

It won't let you boot anything other than a Mac OS X drive or installer, or a windows installer on the stock bootloader.

If you install rEFIt, you can boot to linux drives. I used that to run a custom linux distro off of a flash drive.

http://refit.sourceforge.net/

 

[TXBDan]

^can you elaborate? I installed refit. The menu worked fine, but when i selected and booted from the linux disc in the USB cdrom, it didnt' work. the screen just goes black like before.

I think refit sets up the boot options, but once it boots its still the same as before. linux just can't deal with the EFI i think.