HP Tru64 UNIX Release Notes for Version 5.1B-5 (AA-RVGEE-TE, March 2009)

To uninstall this kit, do the following:
1. Remove all new hardware and new cluster members that you added after installing
this kit.
2. Run dupatch to uninstall the patch kit.
3. Verify that the patch kit was successfully uninstalled.
You can now add the cluster members you removed and reinstall the hardware you
removed, as long as the support for it existed in the prepatched system. You can also
reinstall the patch kit.
3.2.3 Script Must Be Run When Returning to Prepatched System
If removing this patch kit restores your system to a prepatched state, you must run the
/etc/dn_fix_dat.sh script before rebooting your system during the patch-deletion
process.
This situation occurs if Version 5.1B-2, or higher, is the only Tru64 UNIX patch kit
installed on your 5.1B system.
NOTE: Because the no-roll procedure automatically reboots the system after deleting
the patches, you cannot use this method to delete this patch kit if doing so returns your
system to a prepatched state.
Failing to run this script results in your system being unable to boot normally. If this
occurs, do the following:
1. Boot your system in single-user mode:
>>> boot -fl s
2. Run the dn_fix_dat.sh script:
# /etc/dn_fix_dat.sh
3. Reboot normally.
If you also need to reverse the version switch as described in “Script Required to Reverse
Version Switch”, run the /etc/dn_fix_dat.sh script after step 5 in that process.
Because the no-roll procedure automatically boots your system, you cannot use that
patch kit removal method if doing so would restore your system to a prepatched state
NOTE: If during the dupatch installation and deletion processes you see a Special
Instruction about running the /etc/dn_fix_dat.sh script, you should ignore that
instruction unless your system meets the requirement described here.
3.3 Cluster-Specific Installation and Removal Release Notes
This section provides information you need to be aware of if you are installing or
removing patch kits from a TruCluster Server environment.
30 Release Notes