After 'downloading' (building) Solr 5 distribution, the README says:
To start Solr for the first time after installation, simply do:
bin/solr start -f
That will bring Solr server up, but there is no longer a collection1, so we get no cores message, clicking on which brings up an "Add new core" dialogue.
Which - of course - does not actually allow us to create a new core but will just complain bitterly that one does not exist on the file system. And the server will throw a scary stack exception.
We have a catch-22 here. So, either the README needs to go into run an example sequence or ???