When running through the documentation there is mention of using the /var/lib/amq7 directory; however, no mention or suggestion that the person installing might have to create this directory if it does not exist.

$ cd /var/lib/amq7
$ sudo <install-dir>/bin/artemis create mybroker

should read:

$ sudo mkdir /var/lib/amq7
$ cd /var/lib/amq7
$ sudo <install-dir>/bin/artemis create mybroker