Installer logs

Installer log files list details about the ePO - On-prem installation process.

These logs provide information about:

Actions taken by specific components
Administrator services used by the server
Success and failure of critical processes

File name	Log type	Location	Description
`AH5100-Install-MSI.log`	Agent Handler installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	This file logs all Agent Handler installation details including: Installer actions Installation failures
`AH5100-ahetupdll.log`	Temporary	`%temp%` (on the Agent Handler server)	Logs Agent Handler back‑end events.
`core-install.log`	Temporary	`%temp%\TrellixLogs\ePO5100-Troubleshoot\MFS`	Generated when the installer calls the MFS ANT installer. Provides information about: Creation of server database tables Installation of server components Note This file is deleted if the installation succeeds.
`epo-install.log`	Installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	Created when the installer calls the ANT installer.
`EPO5100-Checkin-Failure.log`	Installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	Generated when installer fails to check in any of these package types: Extensions Plug-ins Deployment packages Agent packages
`EPO5100-CommonSetup.log`	Installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	Contains installer details such as: Custom Action logging SQL, DTS (Microsoft Data Transformation Services), and service-related calls Registering and unregistering DLLs Files and folders selected for deletion at restart
`EPO5100-Install-MSI.log`	Installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	The primary installation log. Contains installation details such as installer actions and installation failures.
`<ExtensionFileName>.cmd`	Temporary	`%temp%\TrellixLogs\ePO5100-troubleshoot\OutputFiles`	Created by the installer. Contains the command (sent to Remote‑Client) to check in extensions. Note If the installation succeeds, these files are deleted.
`MFS5100-CommonSetup.log`	Installation	`C:\ProgramData\McAfee\ePolicy Orchestrator`	Contains core functionality installer details.