Symptoms:
- Upgrading to VCSA 6.7 fails at Pre-checks at Stage-2 with the error:
Cannot validate target appliance configuration as not enough information from the source appliance can be collected
- Network configuration validation fails.
- In the /var/log/vmware/upgrade/upgrade-requirements.log file, you see entries similar to:
2019-05-30T14:49:57.447Z INFO upgrade_commands Validating if source fqdn is only resolved by Autov6 address and if it will be dropped.
2019-05-30T14:49:57.447Z ERROR apply_networking Unrecognized network configuration flags 'STATICV4+NONEV6'.
2019-05-30T14:49:57.447Z ERROR upgrade_commands Unable to execute pre-upgrade checks on target machine
Traceback (most recent call last):
File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/upgrade_commands.py", line 2750, in _executeTargetPreupgradeChecks
if self._validateNetworking(preupgradeResult):
File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/upgrade_commands.py", line 2652, in _validateNetworking
self._hasAutov6ResolvableConflicts(sourceConfig, sourceFqdn, sourceDnsServers)
File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/upgrade_commands.py", line 1930, in _hasAutov6ResolvableConflicts
preservedFlags, _droppedFlags = getPreservedNetFlags(sourceNetworking['config_flags'])
File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/apply_networking.py", line 410, in getPreservedNetFlags
raise NetworkConfigError(error)
apply_networking.NetworkConfigError: Unrecognized network configuration flags 'STATICV4+NONEV6'