Grub: Multi Bootable Partitions
Document how grub automatically detects bootable partitions
and adds them to grub boot menu.
- Open /etc/default/grub and append the following code to it.
# Enable detecting other bootable partitions. GRUB_DISABLE_OS_PROBER=false - Run sudo update-grub
- Run cat /boot/grub/grub.cfg to confirm that all bootable partitions have been added to the grub menu entry.
- Reboot to confirm whether it works.