Chapter 9 missing GPT
GPT should definitely be mentioned in this chapter. It is not that uncommon anymore and necessary for disks larger than 2TB.
By extension parted should be mention to be GPT capable opposed to fdisk.
Edit: Also the last command in LAB 9.3 should be: sudo losetup -d /dev/loop1
rather than loop0 since loop1 was used as the device node node the image file during the entire example until that point.