HP Tru64 UNIX Release Notes for Version 5.1B-4 (13157)

Migrating a Patched Standalone System to a Cluster
Installing only the base patches on a noncluster system omits various patches (including some
security patches) because of dependencies on TruCluster Server patches. Such patches are not
needed on standalone systems. However, if the standalone system is then clustered using the
clu_create command and you attempt to apply the cluster patches, many patches fail with
errors because some prerequisite patches failed.
These errors do not necessarily indicate that the patch process has failed, but they are numerous,
can be confusing and might obscure genuine errors.
The preferred procedure for adding a standalone system into a cluster is as follows:
1. Reinstall the operating system on the standalone system.
2. Run the clu_create command and bring up the standalone system as a cluster node.
3. Apply all base and cluster patches.
Disable vfast Utility If Running on Cluster Domains
If the vfast utility is running on the TruCluster domains cluster_root and cluster_var,
deactivate it on the domains before installing or removing this kit. To deactivate vfast on the
two domains, use the following command:
# vfast deactivate cluster_root
# vfast deactivate cluster_var
See the vfast(8) reference page for more information.
Creation of Some MFS File Systems Depends on Version Switch
During the installation of this kit, MFS file systems that are 4 GB and larger (or 2 GB and larger
if a 1024-byte sector size is used) cannot be created until after the version switch is thrown. (See
the Patch Kit Installation Instructions for information about the version switch.)
Workaround Saves Files to Enable Patch Kit Removal
If you upgrade the operating system and install a patch kit within the same roll, the contents of
the patch backups are inadvertently removed. The result is that the patches most recently installed
cannot be removed because the backups are missing.
The following procedure saves then restores backups so they are available if you later decided
to remove the patch kit:
1. Create backup files of the /backup and /doc directories after the postinstall step
(clu_upgrade postinstall) as follows:
# cd /var/adm/patch/backup
# tar cvf /var/adm/patch/BACKUP.tar *
# cd /var/adm/patch/doc
# tar cvf /var/adm/patch/DOC.tar *
2. After the switch step (clu_upgrade switch) untar the files you created in step 1:
# cd /var/adm/patch/backup
# tar xvf /var/adm/patch/BACKUP.tar
# cd /var/adm/patch/doc
# tar xvf /var/adm/patch/DOC.tar
This restores the files under the following directories:
• /var/adm/patch/backup
• /var/adm/patch/doc
26 Release Notes