Couple of small gripes: a. Using fdisk to undo partition is not the correct way to unpartition a drive. You should tear down the layers of a drive's storage in

Couple of small gripes: a. Using fdisk to undo partition is not the correct way to unpartition a drive. You should tear down the layers of a drive's storage in the reverse order they were created, by using wipefs to remove the signature for that layer, so wipefs each partition and then wipefs the drive to remove the partition map itself (there are two signatures on GPT partitioned drives). The suggested method leaves all of the signatures intact, fs and partition map, and can cause later confusion. b. Near as I can tell, upstream GRUB supports ZFS. The article cites a 2011 freebsd thread. http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/fs/zfs http://git.savannah.gnu.org/cgit/grub.git/tree/grub-core/fs/...