HP Tru64 UNIX Version 5.1B-2 and Higher Patch Kit Installation Instructions (March 2009)

1. Uninstall the patch kit as described in “Removing Patches”.
2. Run the clu_upgrade undo install command.
Note that although you do not have to run the clu_upgrade install command when
installing a patch kit or an NHD kit, you must run the clu_upgrade undo install
command if you want to remove those kits and undo the install stage. After you run the
clu_upgrade undo install, you can continue undoing stages as described in “Undoing
a Stage”.
Steps for After the Switch Stage
To remove patches after you have issued the clu_upgrade switch command, you will have
to complete the current rolling upgrade procedure and then rerun the procedure from the
beginning (starting with the setup stage).
When you run the install stage, you must bring down your system to single-user mode as
described in steps 1 through 6 of “Installing Patches from Single-User Mode”. When you rerun
dupatch (step 7), select the Patch Deletion item in the Main Menu. See “Removing Patches”
for information about removing patches with dupatch.
If the patch uses the version switch, you can still remove the patch, even after you have issued
the clu_upgrade switch command. Do this as follows:
1. Complete the current rolling upgrade procedure.
2. Undo the patch that uses the version switch by following the instructions in the release note
for that patch. Note that the last step to undo the patch will require a shutdown of the entire
cluster.
3. Rerun the rolling upgrade procedure from the beginning (starting with the setup stage).
When you rerun dupatch, select the Patch Deletion item in the Main Menu.
Use the grep command to learn which patches use the version switch. For example, in the C
shell:
# grep -l PATCH_REQUIRES_VERSION_SWITCH=\"Y\" /usr/.smdb./*PAT*.ctrl
For information about version switches, see “Version Switch”.
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