Replacing the operating system

Follow these steps to replace the IBM^® i5/OS™ operating system.

The IPL or Install the System menu appears on your console.
```
                               IPL or Install the System
                                                           System: XXXX
 Select one of the following:
 
      1. Perform an IPL
      2. Install the operating system
      3. Use Dedicated Service Tools (DST)
      4. Perform automatic installation of the operating system
      5. Save Licensed Internal Code
 
 
```
Load the first volume of installation media that contains the operating system. (If you are using IBM-supplied media, this volume is labeled B29xx_01, where 29xx is the identifier for the primary language.) Throughout these procedures, load the next volume when prompted by the server. When you are installing from optical media, wait until the In Use indicator goes out before you continue.

After you install the new release over your previous release (V5R2 or V5R3), passwords for all service tools user profiles that still use the default password expire automatically. When you try to log on or access service tools using those profiles, you receive a message that the password has expired and must be changed. Follow the prompts or press the appropriate key (F9) to change the password for that user profile.

Type 2 (Install the operating system) and press Enter. The Install Device Type Selection display appears.

                             Install Device Type Selection
                                                           System: XXXX
 Select the installation device type:
 
      1. Tape
      2. Optical
      3. Virtual optical - preselected image catalog
      4. Current alternate selected device            None

Type the number that corresponds to your device type and press Enter.

The Select a Language Group display appears, which shows the primary language currently installed on the system. The primary language value should match the language feature number that is printed on the installation media. To find the appropriate feature code for your language, refer to Feature codes for national language version.
```
                             Select a Language Group
                                                             System: XXXX
 Note:  The language feature shown is the language feature
 installed on the system.
 
 Type choice, press Enter.
 
   Language feature . . . . . . . . . . . . . . .  2924
 
 
```
If you need to change the feature, type the numbers of the feature code for the language you want.

Press Enter.
The Confirm Install of i5/OS display is shown on your console. Press Enter.
If the Add All Disk Units to the System menu does not appear, go to step 7.

Adding disk units subtask:

If any nonconfigured disk units that are capable of being protected by device parity are currently unprotected, the Add All Disk Units to the System display is shown. If the following display is not shown, continue with step 6.b.
```
                        Add All Disk Units to the System
                                                             System: XXXX
 
 Non-configured device parity capable disk units are attached
 to the system.  Disk units can not be added automatically.
 It is more efficient to device parity protect these
 units before adding them to the system.
 These disk units may be parity enabled and added at SST (i5/OS).
 Configured disk units must have parity enabled at DST.

 Select one of the following:

      1. Perform any disk configuration at SST (i5/OS)
      2. Perform disk configuration using DST 
```
It is much faster to start device parity protection on the disk units at DST before the disk units are added to the auxiliary storage pool configuration.

To start device parity on the eligible disk units, do the following tasks from the Add All Disk Units to the System display:
1. Select option 2 to perform disk configuration at DST.
2. Sign on at the Dedicated Service Tools Sign-on prompt and return to the Use Dedicated Service Tools (DST) menu.
3. Select the option Work with disk units.
4. Select the option Work with disk configuration.
5. Select the option Work with device parity protection.
6. Select the option Start device parity protection. If you have PTFs loaded that enable the RAID-6 feature, the Work with Device Parity Protection display has two options to start device parity. If you want the disk units to be protected with a higher level of device parity protection, the system has the appropriate hardware installed, and the PTFs that enable the RAID-6 protection capability are loaded and applied, select the option Start device parity protection RAID-6. If you want the disk units to be protected with the RAID-5 protection level, select the option Start device parity RAID-5. If you do not have the PTFs that enable the RAID-6 feature to be loaded and applied, the Work with Device Parity Protection display shows only the option Start device parity.
7. A list of parity sets that are capable of running device parity protection are shown. Type 1 on each option line for each parity set.
8. You might see a Confirm Continuation display that indicates that the server must perform a directory recovery. Press Enter to continue.
9. The Confirm Starting Device Parity Protection display is shown. This shows the list of disk units that will have device parity protection. Press Enter to continue.
10. An in-progress display that indicates the status of the function is shown.
11. Return to the IPL or Install the System display.

If the Add All Disk Units to the System menu appears, it could look like the following example.

                        Add All Disk Units to the System
                                                             System: XXXX
 
 Select one of the following:
 
      1. Keep the current disk configuration
      2. Perform disk configuration using DST
      3. Add all disk units to the system auxiliary storage pool
      4. Add all disk units to the system ASP and balance data

If you do not want device parity protection, mirrored protection, or user ASPs, select option 3 (Add all disk units to the system auxiliary storage pool). By adding disk units before you install the operating system, you improve your overall system performance because the operating system is distributed across all of your disk units.

For logical partitions only
If you will be creating logical partitions later, you do not want to configure all units now. Refer to the validated output from the Logical Partition Validation Tool (LVT) supplied by IBM for the configuration selection. To access the tool, go to the Logical Partitioning Web site .

Note: If either the Disk Configuration Error Report display or the Disk Configuration Warning Report display appears, go to Disk configuration warning and error messages to determine the appropriate action.

You could see the following display if your disk configuration has changed. Type 5 next to the problem and press Enter to display the detailed report.

                               Problem Report
 
Note: Some action for the problems listed below may need to
be taken.  Please select a problem to display more detailed
information about the problem and to see what possible
action may be taken to correct the problem.
 
Type option, press Enter.
  5=Display Detailed Report
 
OPT  Problem
 _   __________________________________________________________
 _   __________________________________________________________

If the following display appears, a disk unit that you selected to add to your disk configuration could already have data on it. If you choose to continue, any data that is on the disk units listed will be removed.

Be certain that you want to configure the disk before you continue. Follow the instructions on the display.

Press Enter to return to the Problem Report display. Press F10 to continue the Add Disk Unit subtask.

                    Possibly Configured Units
 
 Problem: These non-configured units appear to be
 configured units of some other disk configuration and
 may contain valid data.  This option will clear the
 data from these units and destroy the other disk
 configuration.
 
 Press Enter to continue
 Press F12=Cancel to return and change your choices.
 
   Serial                   Resource        Other System
   Number      Type  Model  Name            Serial Number
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
   __________  ____   ___   __________       __________
                                                                   More..
 
 F3=Exit         F12=Cancel

The following display shows the percentage of disk units added. This display does not require a response.

                                Function Status
 
 You selected to add units.
 
 
                                     ___ % Complete

When the process completes, continue the manual installation process with the next step.
This completes the subtask for adding disk units.

Status displays are displayed on the console. You do not need to respond to these status displays. Some of the IPL steps might take a long time. The time varies depending on how much data recovery is required for your system.

The Install the Operating System display appears when the IPL for the Licensed Internal Code completes. The XX's in the following display indicate default date and time values.

                          Install the Operating System
 
 Type options, press Enter.
 
   Install
     option . . . . . . 1            1=Take defaults (No other
                                       options are displayed)
                                     2=Change install options
 
 Date:
   Year . . . . . .  XX            00-99
   Month  . . . . .  XX            01-12
   Day  . . . . . .  XX            01-31
 
 Time:
   Hour . . . . . .  XX            00-23
   Minute . . . . .  XX            00-59
   Second . . . . .  XX            00-59

Type the following and press Enter:

Install option 1
Date: (Use the current year, month, and day.)
Time: (Use the current time, 24-hour clock.)

Status messages are displayed during the installation process. You do not need to respond to these displays. The following is an example of a status display. This display might be present for 2 hours or more. The display is blank for a time between stage 4 and stage 5.

Message ID. . . :   CPI2070                    i5/OS Installation Status
 
           +---------------------------------------------------+
Stage 2    |                       XX %                        |
           +---------------------------------------------------+
 
 
Installation                                                       Objects
Stage                                                 Completed    Restored
 
   1 Creating needed profiles and libraries . . . . :   X
 
>> 2 Restoring programs to library QSYS . . . . . . :                XXXXX
 
   3 Restoring language objects to library QSYS . . :
 
   4 Updating program table . . . . . . . . . . . . :
 
   5 Installing database files. . . . . . . . . . . :
 
   6 Completing i5/OS installation . . . . . . . . :

i5/OS is a trademark of IBM in the United States and other countries.

After the operating system has been replaced, the Sign On display appears on your console.

You have completed the installation of the i5/OS operating system.

For most upgrades, continue with Replacing the licensed programs. If you are replacing software of the same version and release, however, do not replace any other licensed programs. Complete the tasks in Checklist: Completing the replacement of the same release.