HP OpenVMS Version 8.2 Upgrade and Installation...

Getting Started with OpenVMS Management Station

Alternative Ways to Initialize the System Disk

You can remove the OpenVMS operating system from your disk in the following ways:

• If the disk contains a small number of user files, copy those user files elsewhere and then reinitialize the disk.



• If the disk contains many user files, use the PRODUCT REMOVE command to remove an obsolete or extra copy of the OpenVMS operating system without removing any of the user files. Note that you must also delete or archive certain operating system files that the PRODUCT REMOVE command cannot delete.

1. If your system disk has multiple system-specific roots, boot the system and execute SYS$MANAGER:CLUSTER_CONFIG.COM to remove all roots except the one from which you are booted.
2. Shut down and boot from the distribution media (CD or DVD) or from a system disk other than the one from which OpenVMS is being removed. Then do one of the following:
   • If OpenVMS is not running from the distribution CD or DVD, log in to a privileged account.
   
   
   
   • If OpenVMS is running from the distribution CD or DVD, choose the option to execute DCL commands.
3. Enter the following DCL commands:

   $ DEFINE/NOLOG PCSI$SYSDEVICE target-disk
   $ DEFINE/NOLOG PCSI$SPECIFIC target-disk:[SYSx.]
   $ DEFINE/NOLOG PCSI$DESTINATION target-disk:[VMS$COMMON]

   where:
   • target-disk is the device name of the disk from which OpenVMS is being removed
   
   
   
   • SYSx is the root number that you did not remove in step 1
4. If the disk also contains layered products that were installed using the POLYCENTER Software Installation utility, HP recommends that you remove them as well. Remove any layered products before using the PRODUCT REMOVE VMS command.
   
   Use the following command to remove all the products at once. Select the layered products you want to remove from the menu.

   $ PRODUCT REMOVE * /REMOTE

   Use the following commands to remove individual products:

   $ PRODUCT SHOW PRODUCT/REMOTE
   $ PRODUCT REMOVE product-name /REMOTE

5. Enter the following DCL command:

   $ PRODUCT REMOVE VMS /REMOTE

6. Because the PRODUCT REMOVE command does not delete certain files, review the target disk to determine whether you want to delete, move, or archive the operating system files that still remain on the disk.
   
   Following are lists of the files that the PRODUCT REMOVE command does not delete:
   • In target-disk:[SYS*.SYSEXE], where * is 0 or the hexadecimal number of any additional OpenVMS Cluster roots on the target disk:

     ALPHAVMSSYS.PAR (OpenVMS Alpha systems) IA64VMSSYS.PAR (OpenVMS I64 systems)

     MODPARAMS.DAT

     PAGEFILE.SYS

     SWAPFILE.SYS

   
   
   
   • In target-disk:[VMS$COMMON.SYSEXE]:

     LMF$LICENSE.LDB

     PCSI$FILE_SYSTEM.PCSI$DATABASE

     PCSI$PROCESSOR.PCSI$DATABASE

     PCSI$ROOT.PCSI$DATABASE

     RIGHTSLIST.DAT

     SYSUAF.DAT

   As you examine the preceding lists of files, you might want to archive, rather than delete, the following files:
   • ALPHAVMSSYS.PAR (OpenVMS Alpha systems)
     
     IA64VMSSYS.PAR (OpenVMS I64 systems)
   
   
   
   • MODPARAMS.DAT
   
   
   
   • LMF$LICENSE.LDB
   
   
   
   • RIGHTSLIST.DAT
   
   
   
   • SYSUAF.DAT
   Also, if you previously removed layered products, there might be additional files created by the layered products that you might want to delete, move, or archive.
7. Review the target disk for the directory structures [VMS$COMMON...] and [SYSx...] that remain after you remove the OpenVMS operating system. You might want to delete these directories.
   
   Note that the directories [SYSx]SYSCOMMON.DIR (in all [SYSx]) are aliases for the file [000000]VMS$COMMON.DIR. DO NOT DELETE THESE SYSCOMMON.DIR files. Instead, use SET FILE /REMOVE as follows:

   $ SET FILE /REMOVE [SYS*]SYSCOMMON.DIR

   After you have executed this command and deleted, moved or archived all the files in [VMS$COMMON...] you can delete [000000]VMS$COMMON.DIR. You can then proceed to delete, move, or archive the files in each [SYSx] directory.

Getting Started with OpenVMS Management Station

Alternative Ways to Initialize the System Disk