Pretty sure I exactly followed the instructions here: Install Elasticsearch with RPM | Elasticsearch Guide [6.8] | Elastic
However tailing journalctl says the following. Anybody got any suggestions. I've very much a Dev, not Ops kind of guy :
Jan 21 16:02:18 elasticsearch5.llgc.org.uk polkitd[1841]: Registered Authentication Agent for unix-process:7194:353072264 (system bus name :1.2535 [/usr/bin/pkttyagent --notify-fd 5 --fallback], object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8)
Jan 21 16:02:18 elasticsearch5.llgc.org.uk systemd[1]: Started Elasticsearch.
Jan 21 16:02:18 elasticsearch5.llgc.org.uk polkitd[1841]: Unregistered Authentication Agent for unix-process:7194:353072264 (system bus name :1.2535, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_GB.UTF-8) (disconnected from bus)
[... stuff ...]
Jan 21 16:02:36 elasticsearch5.llgc.org.uk systemd[1]: elasticsearch.service: main process exited, code=exited, status=1/FAILURE
Jan 21 16:02:36 elasticsearch5.llgc.org.uk systemd[1]: Unit elasticsearch.service entered failed state.
Jan 21 16:02:36 elasticsearch5.llgc.org.uk systemd[1]: elasticsearch.service failed.