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# Pre-installation checks and considerations

Verify that the patch that you are installing is compatible with your version of OpenText Application Quality Management. You can verify the installed version by going to the versions.xml file located under the following:

OS | Path
--- | ---
Windows | {Installdir}\conf
Linux | /var/opt/ALM/conf

Refer to the patch Release Notes for prerequisite and compatibility information.

## Full or incremental patch installation

Patch installation provides two packages:

- Full installation package

  This package does not require any existing install base and can be used independently.

- Incremental installation package

  Note: This package is available for English installation only.

  It is a smaller installer that only contains the differences from your existing 25.1 installation. This package requires that you already installed one of the following:

  - 25.1 GA

  - An earlier patch of 25.1 that is installed also using the incremental installation package.

See the patch release notes for a detailed solution based on your current version.

## System Requirements

Verify that your server machine meets the system configurations.

Note: For the most up-to-date supported environments, see the Support Matrix.

## Required Permissions - Windows

Verify that you have the required permissions to install on a server machine.

To install a patch on a Windows operating system:

- You must be logged on as a local or domain user with administrator permissions. Your user name cannot include a pound sign (#) or accented characters (such as, ä, ç, ñ).

  Note: The patch installation must be performed by the same user who performed the full OpenText Application Quality Management installation.

- You must have the following file system and registry key permissions:

  - Full read permissions to all the files and directories under the directory in which OpenText Application Quality Management is installed. The default location for installation files is C:\Program Files\Micro Focus\ALM. The patch automatically identifies the correct installation directory path on your server machine. Do not change this path.

  - Full read, write, and execute permissions to the directory on which OpenText Application Quality Management is deployed. The patch automatically identifies the deployment directory that was specified during the initial installation.

  - Full read and write permissions to the repository directory which contains the sa and qc directories. The repository path is specified by the user during the first installation. The patch automatically identifies the correct repository path on your server machine.

  - Full read permissions to the system root (%systemroot%) directory.

  - Full read and write permissions to the installation and configuration log files directory. Installation and configuration log files are written to C:\ProgramData\Micro Focus\ALM\log.

  - Full read and write permissions to all the keys under
    HKEY_LOCAL_MACHINE\SOFTWARE.

Tip: The ProgramData folder is hidden by default. Files and folders must be visible to view permissions. Show the hidden files by performing the relevant steps for your operating system.

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## Required Permissions - Linux

To install a patch on a Linux operating system:

- If the repository is located on a remote machine, the application server user account must have network access to the remote repository.

- Your user name cannot include a pound sign (#) or accented characters (such as, ä, ç, ñ).

  Note: The patch installation must be performed by the same user who performed the full installation.

- You must have the following file system permissions:

  - Full read, write, and execute permissions for all the files and directories under the directory on which OpenText Application Quality Management is installed. The patch automatically identifies the installation path. The installation files are used for configuring the server. By default, the installation files are written to: /root/ALM.

  - Full read, write, and execute permissions to the directory on which OpenText Application Quality Management is deployed. The patch automatically identifies the deployment directory specified by the user during the initial installation.

  - Full read, write, and execute permissions to the repository directory which contains the sa and qc directories. The patch automatically identifies the repository path specified by the user during the initial installation.

  - Full read, write, and execute permissions to the installation and configuration log files directory. Installation and configuration log files are written to: /var/opt/ALM/log.

  - Full read, write, and execute permissions to the file delivery logs. The log files are written to: /var/log.

  - If the file repository is located on a remote machine:

    - On the file server machine, share the file repository directory so that the user running the installation is the owner of the files.

    - Clustering. On the machine, or on each cluster node, create a mount directory that points to the file repository directory.

https://admhelp.microfocus.com Application Quality Management 8942
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