At it once again.

All instructions from install_ubuntu.md followed down to "service jetty start".  Returns

Starting Jetty: Failed

Tested jetty prior to solr install and it worked.

Question:

Where should I be when I carry out these instructions?

wget http://archive.apache.org/dist/lucene/solr/4.3.1/solr-4.3.1.tgz
tar zxvf solr-4.3.1.tgz
sudo mv solr-4.3.1/example/ /opt/solr-4.3.1

Obvioulsy not in /opt or I overwrite what's already there. Does it matter where I uncompress/untar?

Any ideas why jetty is failing to start?

ubuntu 13.04
Have had it working before this newest install