I'm running ElementaryOS Loki on a MacBook Pro which was previously running OS X 10.11.5. Now, I want to boot something (another Linux) alongside Elementary, but I can't figure out how to set up grub
, which isn't showing up by default on system startup.
I've tried using grub-install /dev/sda
(with and without --recheck
), but all I get is:
Probing devices to guess BIOS drives. This may take a long time.
sed: can't read /boot/grub/device.map: No such file or directory
grep: /boot/grub/device.map: No such file or directory
/dev/sda1 does not have any corresponding BIOS drive.
How can I properly set up grub
on my machine? I'm specifically looking for the selection menu and option to go to a grub
prompt on startup.