Troubleshooting Tip: How to determine the root cause of ADOM Upgrade failures (including specific errors)

Make sure to always validate the release notes of the version to upgrade to.

To get more information on what exactly triggers the error before the execution of the ADOM upgrade run the following diagnostics:

diagnose debug reset
diagnose debug timestamp enable
diagnose debug service cdb 255

diagnose debug service dvmdb 255
diagnose debug enable

Articles on common errors that occur while upgrading:

• Technical Tip: How to upgrade an ADOM on FortiManager
• Troubleshooting Tip: FortiManager ADOM Upgrade Error 'Fail(errno=-999): Invalid Value'
• Troubleshooting Tip: FortiManager Upgrade with 'Fail(errno=-999):The string contains XSS vulnerability characters - prop[match]: string((AS#):1)'
• Troubleshooting Tip: ADOM upgrade fails with error 'Fail(errno=-2):Direction of member(s) must either be both or the same direction as the group'