btrfs-progs in Zesty (7.9.1-1) is missing the the btrfs-inspect-internal binary. btrfs-inspect-internal replaces the btrfs-show-super command, which is present in Yakkety, but again neither is in Zesty.
Also note that the man pages for both are present in Zesty.
btrfs-progs in Zesty (7.9.1-1) is missing the the btrfs-inspect- internal binary. btrfs-inspect- internal replaces the btrfs-show-super command, which is present in Yakkety, but again neither is in Zesty.
Also note that the man pages for both are present in Zesty.