I installed ES 2.4.6 for use with Chef. Shortly after, Chef updated compatibility to ES 5.x. Since we didn't have any data in ES yet, I removed it via rpm -e and performed same install procedure for ES 5.5.2. After starting ES, "Active: failed (Result: exit-code)". Can't get it to run. Removed it and reinstalled 2.4.6 and it runs.