ePO 安装或升级失败并回滚。
ePO5xxx-Install-MSI.log (%TEMP%\McAfeeLogs\) 文件记录以下各项：
MerModCALog: FAILURE: In LaunchAppAndWait while trying to run the following program:
"C:\PROGRA~2\McAfee\EPOLIC~1\Installer\Core\install.bat"
Return code: 1
Error Message: Incorrect function.
CustomAction: MerMod_RunOrionANTInstaller
core-upgrade log and core-install.log 文件记录以下各项：
test-db:
BUILD FAILED
C:\Program Files (x86)\McAfee\ePolicy Orchestrator\Installer\core\build.xml:1268: The following error occurred while executing this line:
C:\Program Files (x86)\McAfee\ePolicy Orchestrator\Installer\core\build.xml:1719: com.mcafee.orion.core.db.base.DatabaseConnectivityException: Failed to get a connection: Cannot open user default database. Login failed.. Navigate to /core/config and verify database connection settings
注意：文件位置：
- 清理安装 –%TEMP%\McAfeeLogs\EPO5xxx-Troubleshoot\MFS\core-install.log
- 升级 –%TEMP%\McAfeeLogs\EPO5xxx-Troubleshoot\MFS\core-upgrade.log
