'The guest OS None on VM <Source IP> may not be fully supported' 'Fatal error during upgrade REQUIREMENTS' while upgrading VCSA 6.0 to later versions fails

Products

• VMware vCenter Server

Issue/Introduction

Symptoms:

• Upgrade attempt of VCSA from 6.0 to later fails with "Fatal error during upgrade REQUIREMENTS"
• In upgrade-requirements.log, you see entries similar to:

2018-09-18T15:50:39.241Z WARNING transport.guestops The guest OS None on VM <Source IP> may not be fully supported.
2018-09-18T15:50:39.325Z ERROR __main__ ERROR: Fatal error during upgrade REQUIREMENTS. For more details take a look at: /var/log/vmware/upgrade/requirements-upgrade-runner.log
Traceback (most recent call last):
  File "bootstrap_scripts/run-preupgrade-checks.py", line 203, in main
    commandFactory = getCommandFactory(upgradeParameters, execData, reporter)
  File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/upgrade_commands.py", line 3510, in getCommandFactory
    factory = _getLinuxCommandFactory(upgradeParameters, settings, reporter)
  File "/usr/lib/vmware/cis_upgrade_runner/bootstrap_scripts/upgrade_commands.py", line 3443, in _getLinuxCommandFactory
    guestOpsManager.getTemporaryDirectory()
  File "/usr/lib/vmware/cis_upgrade_runner/libs/sdk/proxy.py", line 81, in __call__
    ret = self.func(*args, **kwargs)
 

Note: The preceding log excerpts are only examples. Date, time, and environmental variables might vary depending on your environment.

Environment

VMware vCenter Server Appliance 6.0.x

Cause

The issue is seen if the SuSE-release file on the source vCenter Server Appliance is incomplete or empty

Resolution

To resolve the issue follow the steps below:

1. Log in to the source vCenter Server Appliance using ssh
2. To update SuSE-release file:
   touch /etc/SuSE-release
   vi /etc/SuSE-release
   
   Add the following lines:
    
   SUSE Linux Enterprise Server 11 (x86_64)
   VERSION = 11
   PATCHLEVEL = 3
3. Reboot the source vCenter Server Appliance
4. Rerun the upgrade