Issues (and workarounds)

Created EFI boot partition on MBP

This leads to me unable to boot into macOS, unless I press Option button during startup and explicitly select the Macbook Pro SSD disk to boot from.
Without that I get grub> prompt which seems broken.


Get the correct identifier using diskutil list. Look for type EFI.

$ sudo mkdir /Volumes/EFI
$ sudo mount -t msdos /dev/disk0s1 /Volumes/EFI
$ cd /Volumes/EFI/EFI  # EFI folder inside EFI volume
$ rm -rf ubuntu/ BOOT/
$ cd # Back to home, at least `cd` away from /Volumes/EFI, else it can't be unmounted
$ diskutil unmount /Volumes/EFI


Unable to boot into regolith

I installed regolith on external HDD, but when I select that HDD to boot from, all I get it grub> prompt.

Solution : None yet 😢