#==============================================================================#
# Copyright  : 2000-2019 Mobius Partners                                       #
#              (www.mobiuspartners.com) All rights reserved.                   #
#                                                                              #
# Description: Instructions to update Java for MPmon                           #
# Version Num: All v5.x versions                                               #
#                                                                              #
# Last Change: 20190621 Craig Rees (CraigR@MobiusPartners.com)                 #
#==============================================================================#

Manual instructions to update Java for MPmon v5.X.
Copy / Paste as needed from this guide to apply the update.


First, put the new Java RPM file into place:

	1. Download the new version of the Java 64-bit RPM file from a site like the
       following and copy the RPM into /tmp.
         https://www.java.com/en/download/manual.jsp
	    


		
Second, uninstall the old version of Java:
		 
	2. Switch User to 'root' in order to remove the old version of Java,
	   then install the new Java update.  
	   
	   If you are not familiar with what the current JRE version/name might be, 
	   use the RPM command to find out:
	   
	     rpm -qa | grep jre
	   
	3. Use the RPM command to remove the old version including the MPmon directory:

		 /bin/rpm -ev jre1.8-1.8.0_172-fcs.x86_64
		 /bin/rm -rf /opt/Mobius/Java
		
	   NOTE: Replace the name of the JRE with the currently installed version.



Third, install the new version of Java:

	4.   rpm -ivh --prefix /opt/Mobius/Java /tmp/jre-8u211-linux-x64.rpm

	   NOTE: Replace the name of the RPM file with the one that is in /tmp.
	   NOTE: Java is installed in /opt/Mobius/Java, so run the following 
	   commands as 'root'.  Ignore the symbolic link error:


	5. Create the new symbolic link based on the JRE location:
	   
		 ln -s /opt/Mobius/Java/jre1.8.0_211-amd64 /opt/Mobius/Java/jre


	6. Make sure all MPmon files are owned by the MPmon application owner, i.e.:
	   
		 chown -R shrboadmin:shrboadmin /opt/Mobius

		 
Fourth, test the MPmon changes:

	7. Test the new version of Java:

		 /opt/Mobius/Java/jre/bin/java -version

	   Will show something like the following but with the new version number:

	   		java version "1.8.0_211"
			Java(TM) SE Runtime Environment (build 1.8.0_211-b12)
			Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode)


	8. Login as the MPmon application owner and test the updated version of 
	   "mpmon".  Verify MPmon is operating normally using all available MPmon 
	   Configuration files and notification options:

	   #=====================================================================#
	   #                           MPmon v5.2.2                              #
	   #                    Powered By Mobius Partners                       #
	   #              Copyright 2000 - 2019 Mobius Partners                  #
	   #            (www.mobiuspartners.com) All rights reserved             #
	   #=====================================================================#
	   MPmon v5.2.2      (Build 2019-06-20 23:36:47) on host $HOSTNAME



Thank you for using MPmon!