Can't boot install on MacbookPro 2,2


I need some help getting UM 21.10 usb installer recognized as a bootable drive. Right now, when loading the boot options, only the already installed MacOS HD is listed.

I used Disk Writer to write to thumb drive, and I verified that it's correct.

Here are the EFI files:


Here is the drive layout after writing the image:

I do notice that the EFI path and file names are /EFI/boot/bootx64.efi, and I think I saw someplace that Macs look for /EFI/BOOT/BOOTX64.efi. Could the alpha-case be the issue?

I believe that model of Mac has a 32 bit EFI and requires additional steps to install the OS. There is a thread on this site that addresses a solution though I don't have it at hand.

I recommend searching for it or someone else may be able to give you a link.

Best of Luck

Here it is:

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That did the trick. Thanks!