Upgrade of MnR from 7.4 to 7.7 fails with module manager on M&R Collector.
Watch4net|M&R - 7.x
There was no enough space in /tmp directory for Manager-Module to upgrade
OR
path <Base dir APG>/Tools/Module-Manager/1.16.9/bin/launch-manager.sh
from: if [ z "${_workdir}" ]; then _workdir=${TMPDIR:/tmp}/APG-Module-Manager-${RANDOM}; fi
to: if [ z "${_workdir}" ]; then _workdir=${TMPDIR:<path where the /tmp dir is created with enough space>}/APG-Module-Manager-${RANDOM}; fi
e.g. /opt/tmp (enough space is available).