PRIMECLUSTER Clustering Base4.5A10 Installation Guide

4.1.2 Uninstallation

1. Login to the system as the root user.

   $ su <Return>
   Password:password <Return>

2. If you are using RMS, stop RMS.

   # hvshut -a <Return>

3. If you are using GDS, cancel the GDS settings. For details see the "PRIMECLUSTER Global Disk Services Configuration and Administration Guide".

4. Boot the system in single user mode.

   [Red Hat Enterprise Linux 6]

   Edit the contents of the id entry of the /etc/inittab file using vi(1) etc. as shown below to start the system in single-user mode.

   Note

   • The default runlevel varies depending on the system (3 in the example below).

   • Put down the default target before upgrading as you can restore the system to the state prior to upgrading later.

   [Before Modification]

   #   3 - Full multiuser mode
   #   4 - unused
   #   5 - X11
   #   6 - reboot (Do NOT set initdefault to this)
   #
   id:3:initdefault:

   [After Modification]

   #   3 - Full multiuser mode
   #   4 - unused
   #   5 - X11
   #   6 - reboot (Do NOT set initdefault to this)
   #
   id:1:initdefault:

   Start the system again in single-user mode.

   # shutdown -r now <Return>

   [Red Hat Enterprise Linux 7]

   Check the default target.

   Note

   • The default target before upgrading ([multi-user.target] in the following example) varies depending on the system.

   • Put down the default target before upgrading as you can restore the system to the state prior to upgrading later.

   # systemctl get-default <Return>
   multi-user.target

   The default target changes in single-user mode.

   # systemctl set-default rescue.target <Return>

   Start the system again in single-user mode.

   # shutdown -r now <Return>

5. If you are using GDS, check the file in the /dev/sfdsk directory. If there are other files than _adm, _diag, _sysadm, and _sysdiag, delete them.

6. Insert the DVD and mount the DVD device.

   # mount -t iso9660 -r /dev/<device file name> <DVD-ROM mount point> <Return>

   <DVDROM_DIR> will be used as the mount point.

7. Execute the CLI uninstaller.

   # cd <DVDROM_DIR>/Tool <Return>
   # ./cluster_uninstall <Return>
   Are you sure to remove PRIMECLUSTER from your system (y or n) ? y <Return>
   
     .
     .
   
   The uninstallation finished successfully.

8. Eject the DVD, then reboot the system by executing the "shutdown(8)" command.

   # cd / <Return>
   # umount <DVDROM_DIR> <Return>
   # eject <Return>

   [Red Hat Enterprise Linux 6]

   Edit the contents of the id entry of the /etc/inittab file, which has been changed in Step 5, to the original contents to start the system in multi-user mode.

   [Before Modification]

   #   3 - Full multiuser mode
   #   4 - unused
   #   5 - X11
   #   6 - reboot (Do NOT set initdefault to this)
   #
   id:1:initdefault:

   [After Modification]

   #   3 - Full multiuser mode
   #   4 - unused
   #   5 - X11
   #   6 - reboot (Do NOT set initdefault to this)
   #
   id:3:initdefault:

   Start the system again.

   # shutdown -r now <Return>

   [Red Hat Enterprise Linux 7]

   The default target changes in multi-user mode.

   # systemctl set-default multi-user.target <Return>

   Start the system again.

   # shutdown -r now <Return>

9. If the blacklist of kdump or KDUMP_COMMANDLINE_APPEND is configured after this product has been installed according to the procedure described in "PRIMECLUSTER Installation" of "PRIMECLUSTE Installation and Administration Guide", restore the configuration.

   Note

   • In PRIMECLUSTER Global Link Services:
     Redundant Line Control Function, when using the user command execution function and script files remains, the directory under /etc/opt/FJSVhanet/script is not deleted. Delete this directory after saving or deleting script files.

     # cd /etc/opt <Return>
     # rm -rf FJSVhanet <Return>