netbackup 7 linux media server installation

The initial install process is identical for master and media server:

        1)  OpsCenter Server
        2)  OpsCenter Agent
        3)  NetBackup Server Software
        4)  Exit from this Script

Choose an option:  [1 - 4]: 3

After installation of binaries, the following questions are asked (extract from install_trace... on my lab media server ):

If this machine will be using a different network interface than the
default (v240-3), the name of the preferred interface should be used
as the configured server name.  If this machine will be part of a
cluster, the virtual name should be used as the configured server name.

Would you like to use "v240-3" as the configured
name of the NetBackup server? [y,n] (y) y

Is v240-3 the master server? [y,n] (y) n

What is the fully qualified name of the master server? nbuclus

You can see the default answer to the y/n questions are all (y) - so, if one just press Enter, Enter, it will install as master server.

Please post your install_trace log as attachment or else find the section that corresponds with the example above.

***Edit ****

I just had another look at the Licensing section of the installation (prior to Server name selection):

*****************************************
A NetBackup Server or Enterprise Server license key is needed
for installation to continue.

Enter license key:
XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-P:
        NetBackup Enterprise Server Base product with the following features enabled:

.......
******************************************

Please double-check your license key - you can only choose media server in subsequent selections if you add Enterprise Server  or Enterprise Client  license key.

Your master server should also have Enterprise Server license and not NetBackup Server.

Please check your license key and/or installation log.