Symptoms:
Attempting to scan and remediate an ESXi 6.0 to 6.0 Update 2 using vCenter Update Manager (VUM) 6.0 Update 2 while Normal or Strict Lockdown Mode is enabled, you experience these symptoms:
Workaround:
Disable Lockdown mode on the ESXi 6.0 hosts prior to patching. Once lockdown mode has been disabled, re-scan the ESXi hosts and update the hosts to 6.0 Update 2. After the ESXi hosts have been remediated, re-enable Lockdown mode. For more information, see Enabling or disabling Lockdown mode on an ESXi host