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Installing the Operating System on the Cisco Unified Communications Server, Versions 2000.4.3 and 2000.4.3a
OL-10221-02
Installing Operating System Software Updates
The ILO administrator who accesses the remote server controls all tasks that occur on the server. If an
administrator is performing an installation/upgrade directly on the server and ILO administrator tries to
access the server, the ILO administrator controls all tasks on the server. When an ILO administrator
accesses a remote server, the application locks the keyboard and mouse on the remote server where the
tasks are occurring. These tasks may interrupt the installation or upgrade; to prevent interruptions, notify
all users that can access the server regarding when the upgrade will occur.
What pre-/post-update tasks should I perform?
See the “Installing Operating System Software Updates” section on page 26.
What if I encounter problems during the operating system upgrade?
If you encounter problems during the installation, Cisco recommends that you take the following
actions:
1. If you receive a message that displays in a dialog box during the operating system upgrade, see the
“Error Messages” section on page 28 and perform the recommended corrective action.
2. On the server where the upgrade problem occurred, obtain and review the log file, MCSOSupg.log,
from C:\Program Files\Common Files\Cisco\Logs.
Note Be aware that not all messages that display in the log file are catastrophic. Error messages display in the
log file for many reasons; for example, attempts to access a service that Cisco Unified CallManager does
not use display.
Installing Operating System Software Updates
This section describes how to download and install operating system upgrades, hotfixes, operating
system service releases, and additional operating system software updates from Cisco.com.
The operating system upgrade updates your system to the latest Cisco Unified Communications
operating system version. Do not perform the operating system upgrade on a server that is already
running the same version of the operating system.
Perform updates on the Cisco Unified CallManager publisher database server first and then on the
subscriber server(s) one at a time.
Before You Begin
• Verify that the server runs a compatible version of the operating system, as described in the “Which
versions of the operating system are compatible with operating system upgrade 2000.4.3a?” section
on page 25.
• Disable all Cisco-verified, third-party applications and reboot the server.
• Disable Cisco IDS Host Sensor Agents and reboot the server.
• Verify that you installed the latest backup utility that is available on the web. Verify that you have a
good backup of your data on a network directory or tape device.