You will need to install a license if:
If you are automating deployment or the Web GUI is crashing, use the CLI. The iRMC S4 runs a Linux-based shell accessible via SSH or the local serial console.
Example (illustrative):
scp license_file.lic admin@<iRMC_IP>:/tmp
ssh admin@<iRMC_IP>
licensemgr install /tmp/license_file.lic
licensemgr list
(Commands vary; consult iRMC command reference for exact CLI syntax.)
Type the following commands (press Enter after each):
cd /map1
show licenses
Note: map1 is the Management Access Point 1 (the main iRMC controller).
This command shows currently installed licenses.
Press [F10] to save changes and reboot. The license is now stored in non-volatile memory on the iRMC chip.