Marko Apfel - Afghanistan/Belgium/Germany

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Tuesday, November 25, 2014 #

ClearCenter offers an almost ready to go VirtualBox image:

With the first boot it provides a web based configuration GUI via URL

Per default it is not possible to access this URL from the host machine which runs the VirtualBox virtualization software. So it is necessary to forward the request to the virtualized guest (ClearOS).

Changing these settings doesn’t need a shutdown of the server, it could be made during a running guest system!

Select ClearOS machine > Settings > Network > Port Forwarding

I defined a forwarding of port 8181 of the host machine (here to port 81 (as provided from ClearOS) to the guest:
(check the Guest IP, it is written in the welcome screen)


Now it is possible to access the web based configuration tool via:


During my first installation of ClearOS the (web) installer hangs during the system update step. It downloaded a lot but it didn’t applied the updates because of the error “Exception: Didn't install any keys”.

The easiest workaround to get rid of this is a manual update on a console. Therefore I switched to virtual machine and opened second console with ALT + F2 and logged in as root. With the yum package manager this is a simple task, run the command

yum update

Now the systems downloaded in my case around 100MB and applied the updates. During this the moment came where I had to confirm something with yes. After a while the system is updated and I could switch back to the browser with the installer.

It was necessary to went back to the previous step and also to reload the page once. Being back to the upgrade step the system now stated, that it is up to date and let me went to the next step..