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USB 3 cards should all be bootable by now?

M

macmesser

macrumors 6502a
Original poster
Aug 13, 2012
921
198
Long Island, NY USA
Should I be checking bootability on currently available USB 3 cards for Classic Mac Pros or should they all pretty much be bootable? If it is not safe to assume they will be bootable in latest OS, what's the reason (other than they weren't made that way :p)?
 
macmesser said:
Should I be checking bootability on currently available USB 3 cards for Classic Mac Pros or should they all pretty much be bootable? If it is not safe to assume they will be bootable in latest OS, what's the reason (other than they weren't made that way :p)?
Click to expand...

No USB 3 PCIe card is bootable in a Mac Pro 1,1-5,1 as there is no driver support until an operating system loads drivers. USB 3 is not in EFI.
 
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h9826790 said:
Yes, it’s definitely possible.

And I did able to activate the KT4004 via Clover few months ago when I was trying to activate the GPU via Clover.
Click to expand...
as we know now mac pro 4,1 5,1 boot rom can be modıfıed as NVME boot maybe same way we can modıfy bootrom to have usb 3.0 boot. not ın clover..
 
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