hfs-bless - Man Page
make HFS+ filesystems bootable on EFI-based Apple hardware
Synopsis
bless filename
Description
bless makes the file filename run as the bootloader on HFS+ filesystems on Apple hardware when using EFI. It does not support setting EFI boot variables - use efibootmgr for that.
See Also
mkfs.hfsplus(1), efibootmgr(1)