You can use Migration Assistant log files and status files to troubleshoot migration failures.

If the migration fails, Migration Assistant generates a log file bundle on your desktop.

1

Navigate to your desktop folder and open the VMware-MA-logs-time-of-migration-attempt.zip file, where time-of-migration-attempt displays the year, month, date, hour, minutes, and seconds of the migration attempt.

2

Retrieve the log files from the .zip file on your desktop.

3

Retrieve other log files and status files.

Log and status files locations on the source vCenter Server or vCenter Server Single Sign-On

File

Location

Migration Assistant log file

%temp%\migration-assistant.log

Pre-check log file

%temp%\vcsMigration\UpgradeRunner.log

Pre-check component log files

%temp%\vcsMigration\CollectRequirements_ComponentName.log

Export log file

%temp%\vcsMigration\UpgradeRunner.log

Export component log files

%temp%\vcsMigration\Export_ComponentName.log

Status file

%temp%\UpgradeRunnerExportOutput.json

Log and status files locations on the target vCenter Server Appliance or Platform Services Controller

File

Location

Log files

/var/log/vmware/upgrade/UpgradeRunner.log

/var/log/vmware/upgrade/upgrade-requirements.log

Domain join log file

/tmp/lwidentity.join.log

Export log files

/var/log/vmware/upgrade/UpgradeRunner.log

/var/log/vmware/upgrade/upgrade-export.log

First boot component log files

/var/log/firstboot/ComponentName-firstboot.py_##_stdout.log

/var/log/firstboot/ComponentName-firstboot.py_##_stderr.log

Import log files

/var/log/vmware/upgrade/UpgradeRunner.log

/var/log/vmware/upgrade/upgrade-import.log

Precheck status file

/var/log/vmware/upgrade/prechecks.json

Export status file

/var/log/vmware/upgrade/export.json

First boot status file

/var/log/vmware/firstbootStatus.json

Import status file

/var/log/vmware/upgrade/import.json

Examine the log files to determine the cause of failure.