I have installed Linux on a second partition on my MacBook, it also installed the GRUB boot loader which is fine however I have the following problems:
When GRUB loads by default there is no entry for booting into OS X, only Linux.
When I hold option on boot to boot from the OS X partition it doesn’t detect that there is an OS on another partition and only gives me the option for my OS X partition or the Recovery partition.
If possible I would like to remove GRUB and add the Linux partition to my OS X Boot Loader so I have to hold option to boot into Linux as I prefer the look of it and will be using OS X more often so would also be more convenient.
However, failing that I would like to edit my GRUB MBR to add the OS X partition and have it set to auto-boot said partition within 3 seconds if no key is pressed.
If anyone can help me with this I would greatly appreciate it, I’ve never ran into similar problems and dug my way out of the hole before but this time I can’t seem to, any and all help will be appreciated!
MacOS Sierra 10.12 (Partition 1) Linux: Debian Jessie (Partition 3) MacOS Recovery Partition is Partition 2 GRUB also installed on Partition 3