Next we can check for update:
Next we will install the 1.30 bits:
With the bits installed we need to log into the monitoring site so it can be updated:
Check current version:
Run omd update
Update!
With the bits updated and site started the GUI should now be working. Now its time to update all of my clients from check_mk 1.2.4p5 to 1.2.6p12, the new agents are found in /share/check_mk/agents directory of your site folder.