...

This procedure can be used after a simplified upgrade. 

To revert to a previously installed version, execute the following procedure:

...

2. Disable all workflow groups, either from the Execution Manager in Desktop, or by entering the following command:

   Code Block
   $ mzsh mzadmin/<password> wfgropudisablewfgroupdisable \*

   Note
   title Note!
   If you use the wfgroupdisable command, make sure that you enable all system tasks again when you are done.

3. Stop all workflows.
    

4. Shut down all connected Desktops.
    

5. If you want to see which Desktops that are connected, you can use the following command:

   Code Block
   $ mzsh mzadmin/<password> pico -view

   Note
   title Note!
   This command will also display other pico instances, such as ECs.

6. Shut down the Platform and all ECs.

   Code Block
   $ mzsh shutdown Platformplatform <ec name> ...

7. Remove MZ_HOME.

   Code Block
   $ rm -rf $MZ_HOME

8. Restore the backup of MZ_HOME.

   Code Block
   $ cp -r <backup directory> $MZ_HOME

9. If you are downgrading a system not using OracleDerby, restore the database backup.

...

...

Resume Workflow Execution

1. Set the environment variables JAVA_HOME and PATH according to the system requirements of the restored version.

...

...

$ export MZ_HOME=/opt/mz  
$ export JAVA_HOME=/opt/jdk/jdk1.8.0_121  
$ export PATH=$JAVA_HOME/bin:$MZ_HOME/bin:$PATH

2. Start the Platform and all ECs.

   Code Block
   $ mzsh startup

...

2. platform <ec names> ...

3. Import the configurations that were exported in the old version prior to the upgrade.      

   Code Block
   $ mzsh mzadmin/<password> systemimport <backup directory>/<filename>

4. Start the real-time workflows.
    

5. Enable the Workflow Groups.

   Code Block
   $ mzsh mzadmin/<password> wfgroupenable \*