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# Patch installation

This section describes how to install a patch on an existing installation of an on-premises OpenText™ Software Delivery Management server.

A patch is a minor release that includes fixes for defects and security vulnerabilities. It does not include new features or database schema changes.

## Prerequisites

Before installing a patch, review the following:

1. Stop the octane service on the server, and if relevant, on all cluster nodes.

2. Create backups of:

   - The repository

   - Existing configuration files, including octane.conf

   - Your database

   - Elasticsearch

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## Install the patch

1. Download the OpenText Software Delivery Management patch package.

2. Deploy the package for the new version of OpenText Software Delivery Management:

   OS | Command
   --- | ---
   Linux | rpm -Uvh --prefix <install-path><name of new rpm file>
   Windows | setup.exe

3. Start the OpenText Software Delivery Management server:

   OS | Command
   --- | ---
   Linux | Run `systemctl start octane`
   Windows | On the server machine, go to: Start > OpenText Software Delivery Management > Start OpenText Software Delivery Management

4. Check the wrapper.log file. If you encounter a recoverable error in the wrapper.log or upgrade.log files, fix the problem and restart the server.

   OS | Path
   --- | ---
   Linux | /opt/octane/log/wrapper.log
   Windows | C:\Program Files\octane\log\wrapper.log

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https://admhelp.microfocus.com Software Delivery Management 8942
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