Typical GRUB2 installations would execute the script
located at /usr/libexec/mactel-boot-setup which would
modify the HFS+ ESP files and bless the specified efi.
However, we are not using GRUB at this time which would
cause that script to exit earlier.
These changes will execute the relevant commands
to symlink the efi file in the /System directory as well
the cfg file. Lastly, macOS requires the bootable efi
file to be blessed.
We also attempt to place some user-friendly icons
for Qubes to show to the user.
Lastly, we add a README with some instructions on how
to get into rescue mode from macOS.
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