Please drop me a hint, what do I have to do in order to be able to boot an Intel MacPro 2.1 (dual xeon) from USB.
I already created a bootable USB but the mac doesn’t see it during the boot process.
CPUs are 64 bits but it has efi32 so it’s difficult to boot
I seem to remember using rEFInd to install on those type of boxes back in the day. Not sure if it’s still relevant, but it basically let you chainload from the older Mac EFI.
From what I’ve read, it’s generally a good idea to keep the macOS installation, or at least the Recovery partition/disk, in order to be able to perform certain low-level operations.
Pressing Cmd+R when booting would reveal the macOS recovery system, if still available. If not, you might want to try reinstalling the original macOS which came with the Mac, in case the installation media is still available.
right, I was thinking about that.
Also, someone told me to pull out all the HD from the bays and leave only the USB connected and reset the NVRAM, maybe this helps.
I will try. Thanks anyways!