Installing OS/2 Warp Server on OS/2 Warp 4

10.2 How to Build Disaster Recovery Diskettes

Boot diskettes are used to boot a system when the boot from hard disk fails or when all the files on the hard disk need to be accessible and not in use. For a plain OS/2 system these diskettes are called utility diskettes. They can be built if you use the Icon Create Utility Diskettes which is found under OS/2 System and then System Setup.

On a server that uses HPFS386, these diskettes need to be modified in order to be able to access the HPFS386 file system. There is a utility called MAKEDISK stored in the \IBMLAN\NETPROG directory that allows you to easily make these modifications.

If you build Disaster Recovery Diskettes under PSnS, a combination of both processes is used. This can lead to some confusion, especially when you use Warp 4. Therefore we recommend that you read the following instructions very carefully.

You will need four diskettes. Label them as PSnS Diskette 1 to 4. They will be formatted during the process so no preparation is needed.

Open PSnS Backup and Recovery, then open Backup/Restore as shown in Figure 72. and Figure 73.

Figure 72: PSnS Backup and Recovery - Icon View

Note:

If this is the first time you are using this feature, you are asked to perform a simple test backup. You can skip this by pressing Move on. You then choose Use disaster recovery guide.
At the OS/2 Warp Server Backup/Restore Window, select Tools - Guides - Disaster Recovery Guide... as shown in Figure 73.

Figure 73: PSnS Tools

Note:
If this is the first time you are using this feature, you are asked to perform a simple test backup. You can skip this by pressing Move on. You then choose Use disaster recovery guide.

A notebook will be presented to you as shown in Figure 74, where you should make the following selections:

Intro:: Read the short introduction to disaster recovery.
Devices:: Choose your tape drive.
HPFS386:: Check 'Include support for HPFS386'.
Diskettes:: Shows the drive where the diskettes will be created.

Press the Create Diskettes button.

In the following Create Utility Diskettes dialog box, you are prompted for the drive letter on which the diskettes are beeing created.

Select the drive letter (A:).
Press Create.

The next dialog box prompts you the source directory which is usually the OS2IMAGE directory on the Warp 4 CD.

Confirm your selection by pressing OK.
Insert the PSnS Diskette 1 into your disk drive as prompted.
Press OK

Figure 74: Disaster Recovery Guide

An information window appears, telling you that the diskette is about to be formatted.

Confirm by selecting Yes.

The diskette will then be formatted. This process will be repeated for the PSnS diskettes 2, 3 and 4. The procedure after this installation step is the create utility diskettes procedure from OS/2 Warp (in this case from version 4), so the diskettes might be named differently than you labeled them in previous steps.

When completed, you are prompted to remove diskette 3. Remove the diskette.

Press OK.

Note:

This can be a confusing issue. We recommend that you look at Figure 75 while you read this note.
OS/2 labels its diskettes starting with DISK0. OS/2 Warp V3 creates 3 diskettes, where the first one (DISK 0) contains the boot record and kernel. On the second diskette (DISK 1) OS/2 places the CONFIG.SYS, all device drivers, the drivers for the installable file system (IFS), all DLLs and other executables launched from the CONFIG.SYS. The third diskette (DISK2) contains all the tools, however it is not essential to the diskette boot process.
The diskette creation process from PSnS assumes that it is modifying OS/2 Warp V3 diskettes. It modifies the CONFIG.SYS, adds the device drivers for the tape and support and adds the IFS drivers for HPFS386 support on DISK 1. On DISK 2 it copies only the restore application. However this is not relevant for the boot process.
OS/2 Warp 4 is creating 4 diskettes (DISK 0 to 3) instead of 3, because the number of device drivers and the plug and play support require more drivers loaded during boot time. On a set of OS/2 Warp 4 utility diskettes, DISK 0 has the same content as on OS/2 Warp 3. DISK 1 also contains the CONFIG.SYS in addition to the device drivers (plus snooper drivers used for plug and play support). IFSs, DLLs and executabes launched from the CONFIG.SYS are placed on DISK 2. DISK 3 only contains tools that are not used during the boot process.
If HPFS386 and PSnS support is added to the OS/2 Warp 4 diskettes, only the tape drivers have to be copied to DISK 1. The IFS driver for HPFS386 and all assigned DLLs has to be copied on DISK 2. The PSnS restore tool has to be placed on the last diskette, DISK 3.
Another confusing issue is, that PSnS uses a different numbering scheme than OS/2 for the diskettes. The first diskette, the OS/2 DISK 0, is called PSnS Diskette 1.

Figure 75: Contents of Disaster Recovery Diskettes

Note:
This can be a confusing issue. We recommend that you look at Figure 75 while you read this note. OS/2 labels its diskettes starting with DISK0. OS/2 Warp V3 creates 3 diskettes, where the first one (DISK 0) contains the boot record and kernel. On the second diskette (DISK 1) OS/2 places the CONFIG.SYS, all device drivers, the drivers for the installable file system (IFS), all DLLs and other executables launched from the CONFIG.SYS. The third diskette (DISK2) contains all the tools, however it is not essential to the diskette boot process. The diskette creation process from PSnS assumes that it is modifying OS/2 Warp V3 diskettes. It modifies the CONFIG.SYS, adds the device drivers for the tape and support and adds the IFS drivers for HPFS386 support on DISK 1. On DISK 2 it copies only the restore application. However this is not relevant for the boot process. OS/2 Warp 4 is creating 4 diskettes (DISK 0 to 3) instead of 3, because the number of device drivers and the plug and play support require more drivers loaded during boot time. On a set of OS/2 Warp 4 utility diskettes, DISK 0 has the same content as on OS/2 Warp 3. DISK 1 also contains the CONFIG.SYS in addition to the device drivers (plus snooper drivers used for plug and play support). IFSs, DLLs and executabes launched from the CONFIG.SYS are placed on DISK 2. DISK 3 only contains tools that are not used during the boot process. If HPFS386 and PSnS support is added to the OS/2 Warp 4 diskettes, only the tape drivers have to be copied to DISK 1. The IFS driver for HPFS386 and all assigned DLLs has to be copied on DISK 2. The PSnS restore tool has to be placed on the last diskette, DISK 3. Another confusing issue is, that PSnS uses a different numbering scheme than OS/2 for the diskettes. The first diskette, the OS/2 DISK 0, is called PSnS Diskette 1.

You are now prompted to insert diskette 2 as shown in Figure 76.

Insert PSnS diskette 2.
Press Enter.

Figure 76: Diskette Modification for HPFS386

The MAKEDISK utility is started and asks that you insert OS/2 DISK 1 (which we labeled as PSnS diskette 2 in previous steps) as shown in Figure 77 in order to copy the HPFS386 drivers on it.

Figure 77: MAKEDISK.EXE

This is correct for OS/2 Warp V3, but as mentioned before, the HPFS386 drivers have to be on DISK 2 for a OS/2 Warp 4 system. The MAKEDISK utility is checking the diskette label in the file system to be sure that you have OS/2 DISK 1 inserted. The solution is to manipulate OS/2 DISK 2 so that MAKEDISK thinks it is OS/2 DISK 1.

Open a command prompt.
Insert OS/2 DISK 2 (which we labeled PSnS Diskette 3) in drive A:.
Change the volume label on the diskette to DISK 1 by entering the following command:
```
LABEL A:DISK 1
```
Delete the following files from the diskette to create space for the HPFS386 diskettes:
- CDFS.IFS
- CDINST.EXE
- OS2CDROM.DMD.
All these files enable CD-ROM support that is not used for the recovery process.
Close the command prompt and switch back to the MAKEDISK utility.
Press Enter to continue with MAKEDISK.

After all the modifications for this diskette are finished, a dialog box appears prompting you to insert diskette 3.

Insert the diskette that we have previously labeled as PSnS Diskette 3 in the diskette drive.
Confirm with OK.

The diskette creation process is now copying files on the diskette. After the process of creating the diskettes is completed, you must proceed with these final modifications:

Change the volume label of OS/2 DISK 2 (PSnS Diskette 3) back from DISK 1 to DISK 2.
- Open a command prompt.
- Insert PSnS Diskette 3 into the diskette drive
- Enter the following command:
```
LABEL A:DISK 2
```
Edit the CONFIG.SYS on OS/2 DISK 2 (PSnS Diskette 3):
- Delete the following entry:
```
BASEDEV=PRINT01.SYS
```
- Add the following entry:
```
BASEDEV=IBMKBD.SYS
```
- If you are using a RAID machine you also have to add the RAID driver manually.
Copy the following files from OS/2 DISK 2 (PSnS Diskette 3) to a temporary directory on your hard disk and delete them from PSnS Diskette 3:
- CONFIG.SYS
- ADSMSDID.SYS
- ADSMTAPE.SYS
- OS2SCSI.DMD
Copy the files from the temporary directory to OS/2 DISK 1 (PSnS Diskette 2)

To use these diskettes, boot your system from PSnS Diskette 1 and change the diskettes as requested. When you get a command prompt, insert PSnS Diskette 4, type GO and press Enter to start the recovery process.

Part 4. Updating an Existing Server