I've tried to mount my mac's EFI partiton while using an ubuntu live USB, however I get the following errors:
ubuntu@ubuntu:~$ sudo mount /dev/sdb2 /mnt/efi mount: /mnt/efi: /dev/sdb2 already mounted or mount point busy. ubuntu@ubuntu:~$ sudo umount /dev/sdb2 umount: /dev/sdb2: not mounted
And yes /mnt/efi is a directory that I made.
Previously, I tried to run boot-repair, here is the output log from that http://paste.ubuntu.com/p/DXFzrz5zny/
And here is my previous network question, How do I boot back into my MacOS?