Upgrade Splunk UBA prerequisites

Splunk UBA 5.0.4 requires any previous Splunk UBA 5.0.x release. See How to install or upgrade to this release of Splunk UBA for upgrade path information.

Before you upgrade, perform the following tasks:

In RHEL Linux environments:
- Ensure that Splunk UBA has access to RHEL repositories.
- Review the External dependencies affected by this upgrade in the Release Notes.
Review the Known issues for this release in the Release Notes.
The software update contains archive files approximately 50KB, 300MB, and 500MB in size. The total extracted size is approximately 1GB. Verify that you have enough free space in /home/caspida to store the downloaded the extracted installer files.
Backup your system.
- Configure automated full and incremental backups without stopping Splunk UBA. See Prepare automated incremental backups in Splunk UBA in Administer Splunk User Behavior Analytics.
- Stop Splunk UBA and perform a full offline backup. See Migrate Splunk UBA using the backup and restore scripts in Administer Splunk User Behavior Analytics.
If you are using the Splunk UBA Monitoring app, upgrade to version 1.1. See About The Splunk UBA Monitoring app in the Splunk User Behavior Analytics Monitoring App manual.
Make sure your system is running normally by using the uba_pre_check.sh shell script.
```
/opt/caspida/bin/utils/uba_pre_check.sh
```
See Check system status before and after installation for more information about the script.

After satisfying the prerequisite requirements, go to one of the following:

Install and Upgrade Splunk User Behavior Analytics