Recovering the Licensed Internal Code

Licensed Internal Code is the layer of System i® architecture just above the hardware.

You must have the Licensed Internal Code on your system before you can restore the operating system. You must use the control panel to start the recovery of the Licensed Internal Code. The control panel can be one of the following:

Physical control panel.
IBM® i5/OS remote control panel.
IBM i5/OS virtual control panel.
System partitions using system service tools (SST) and dedicated service tools (DST).
Hardware Management Console (HMC) if the system is managed by the HMC.

The Install Licensed Internal Code (LIC) menu provides several methods for loading the Licensed Internal Code to your system. Table 1 describes the options and how they are used:

Table 1. Options from the Install the Licensed Internal Code (LIC) Menu
Option number	Description	Purpose
1	Restore	Restores the Licensed Internal Code without removing other information that is on the system. Option 1 is normally used in the following situations: You are encountering problems with the operating system, such as damaged objects. You sometimes need to restore the Licensed Internal Code before restoring the operating system. The software support center suggests it. You have replaced a failed disk unit other than unit 1 in the system auxiliary storage pool (ASP). You are updating your system to a new release. See Installing, upgrading, or deleting i5/OS and related software for the procedures to install a new release of the i5/OS operating system.
2	Install the Licensed Internal Code and Initialize system	Installs the Licensed Internal Code and removes all data from all disk units. Option 2 is normally used in the following situations: You are doing a restore operation using the SAVSTG media. You are restoring to another system to recover from a complete system loss. You are recovering with SAVSYS media that is at a previous release than what is currently installed on the system. If a system is configured to use Operations Console, and that system undergoes a backup and recovery cycle, you will have to perform the following steps: Perform an initial program load (IPL) in Manual mode. If a system is configured to use the Operations Console, and that system undergoes a backup and recovery cycle, you might have to perform these steps: Perform an IPL in Manual mode. Use dedicated service tools (DST) to reconfigure the system so that it will detect the PC console when you perform an IPL in Normal mode.
3	Install Licensed Internal Code and Recover Configuration	Installs the Licensed Internal Code and prompts you to begin the procedure to recover information about how the disks were configured on your system (including ASP assignments and protection). Option 3 is normally used in the following situations: You have replaced the load source unit. The software support center suggests it.
4	Install Licensed Internal Code and Restore Disk Unit Data	Installs the Licensed Internal Code and restores data to a replacement disk unit. This option is used only by a load source unit after data was successfully saved (pumped) from a failed load source disk unit.

The recovery checklists in Selecting the appropriate recovery strategy specify which procedures in this chapter are required for your situation.

Attention: Make sure you use the correct procedure for your situation. Some of the procedures in this chapter will remove all data from your system.