You should be able to just update the Ambari rpm. Alternatively, the brute force approach is
yum remove ambari-server postgresql-server rm -Rf /var/lib/ambari-server /etc/ambari-server /var/lib/psql then you should be able to reinstall Thanks, Olivier ---- Olivier Renault Solution Engineer Mobile: +44 7500 933 036 On Thu, Aug 6, 2015 at 1:47 AM -0700, "Kaliyug Antagonist" <kaliyugantagon...@gmail.com<mailto:kaliyugantagon...@gmail.com>> wrote: Yes Ambari 2.1 would be a good idea and since I am planning to un install the cluster, I may install the new Ambari version as well. Accordingly, I think I should follow the steps as below : 1. Clean the cluster using the steps in the link you provided 2. How to un install Ambari ??? 3. Install Ambari 2.1 4. Install HDP ? Can you validate the steps and help me with the '?' Thanks and regards ! On Thu, Aug 6, 2015 at 10:43 AM, Olivier Renault <orena...@hortonworks.com<mailto:orena...@hortonworks.com>> wrote: I don't think, I've tried it with Ambari 2.x. Please try it and let us know. BTW, you should be installing Ambari 2.1 ( there is quite a lot of bug fix vs 2.0 ). Kind regards, Olivier From: Kaliyug Antagonist Reply-To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" Date: Thursday, 6 August 2015 10:41 To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" Subject: Re: Clean un-installation via Ambari Hi Olivier, I checked the link and I had a query - does this hold true even for HDP-2.2.4.2-2 using Ambari Version 2.0.0. as I have read that Ambari 2.x is a major improvement over the 1.x ? Thanks. On Thu, Aug 6, 2015 at 10:39 AM, Olivier Renault <orena...@hortonworks.com<mailto:orena...@hortonworks.com>> wrote: https://cwiki.apache.org/confluence/display/AMBARI/Host+Cleanup+for+Ambari+and+Stack Olivier From: Lo?c Chanel Reply-To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" Date: Thursday, 6 August 2015 10:35 To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" Subject: Re: Clean un-installation via Ambari HostCleanup.py
