The serial-collector script,
somehow got left out of the most recent ISO. This script is only
necessary for new Y-HPC customers, who have not yet generated a license
file for their cluster nodes. If you already have a license file, this
bug does not affect you.
Attached is the serial-collector.master file. A new version of the
Y-HPC install ISO, containing this file, should be posted to YDL.net/pro