Test Instance: vrts1002.eqiad.wmnet

Steps:

• sudo /usr/local/bin/upgrade_vrts 6.5.3
• sudo /opt/otrs/bin/otrs.CheckModules.pl --all : check for missing required modules
• sudo su - otrs
• time /opt/otrs/scripts/MigrateToZnuny6_5.pl
• /opt/otrs/bin/otrs.Console.pl Admin::Package::UpgradeAll
• sudo systemctl restart cron
• sudo systemctl restart exim4
• sudo systemctl restart apache2
• sudo systemctl restart vrts-daemon