Request to interpret Boot Repair pastbin

[pdwilkins]

Hi: I am trying to install 18.10 on an old Apple MacBook Pro. I made the mistake of upgrading a previous 18.10 installation to 20.10 and 22.04. The last upgrade confronted me with unsupported nVidia driver issues. I decided to go back to 18.10 but somehow lost my uefi boot capability. I installed OSX Leopard, the version that came with the machine (I said it was old) and that works, but I can't simply install ubuntu from the live-dvd because I can get it to boot into uefi.

Here is my Boot Repair pastebin URL: https://paste.ubuntu.com/p/FDzrY7syhH/

Any help would be appreciated.

Thank you,
Peter

[howefield]

Thread moved to the "Apple Hardware Users" forum.

[pdwilkins]

Thank you, howefield!

[oldfred]

You should not install 18.10. That is EoL or end of life.
https://wiki.ubuntu.com/Releases
If 20.04 worked better to use it, as it is LTS - long term support.

You have to shrink your Apple partition to make unallocated space for Ubuntu and boot Ubuntu live installer in UEFI boot mode.
If older system, a lightweight flavor may be better, but they only have 3 year support.
https://ubuntu.com/download/flavours
Light weight flavors:
Lubuntu, xubuntu, Ubuntu MATE, Budgie

https://ubuntuforums.org/showthread.php?t=2377181