I have a dualboot setup as described in this answer to Installing Ubuntu on pre-installed Windows 10 with UEFI I want to take advantage of the SSD drive on Ubuntu without messing up Windows 8.1.
All systems are on /dev/sda
(including /boot/efi
) and the solid-state drive appears on /dev/sdb
in two "unknown" type partitions in GParted -- is it safe to format these and how to best make use of them on Ubuntu?