You have three possibilities:
On hard disk
On iso image
The image of disk s activated. You can use the option to perform a correct server installation.
To start the server from HDD to check what is wrong or make changes you need to use the "On hard disk" mode. You tick it, if the system installed is 64bits you must tick the "64bits" option. Now click on "Start the server button"
* When you click on the "Start the server button", you will be asked to accept Java activation. Accept to continue.
* In the browser a window representing the contents of your server will open up. Remember that the applications installed on the server won't be accessible in this mode (server WWW, DNS, TSE, ....).
* This mode allows a server diagnosis when no remote connection is accessible.
Now if you want to start the server from HDD or start the server from the rescue mode you must change the netboot you want and then in vKVM mode use "Shutdown the server" button. Then use "Reboot vKVM" button and the server will be started in the Netboot into which you switched.