These qcows were made for use with PANDA and were tested as such.
Each image has a snapshot called
cmdline -Where the guest is logged in as the root user. Typically these were created with 1G of memory.
virt-customize -a rhel-guest-image-7.2-20160302.0.x86_64.qcow2 --root-password password:PASSW0RD)