sudo losetup --partscan --find --read-only --show ~/test.dd
#check which device is created, use that down below
mount -o ro /dev/loop0p1 /mnt/part1
sudo losetup --partscan --find --read-only --show ~/test.dd
#check which device is created, use that down below
mount -o ro /dev/loop0p1 /mnt/part1