Uploading the ESXi host ISO image to the vCenter Update Manager 6.5 fails

Products

• VMware vCenter Server
• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• When you upload the ESXi host ISO image to the update manager, it fails with a red exclamation mark.
  
  Note: You see this issue with VMware and vendor specific custom ISO.
  
  

• In the vmware-vum-server-log4cpp.log file, you see the entries similar to:
  
  [2016-12-30 14:52:51:795 'managedJetty' 139726158255872 INFO] [managedJetty, 368] Jetty: 2016-12-30 14:52:51.794:WARN:oejs.ServletHandler:qtp1940447180-32907: Error for /vum-fileupload/login
  [2016-12-30 14:52:51:795 'managedJetty' 139726158255872 INFO] [managedJetty, 368] Jetty: java.lang.NoClassDefFoundError: com/vmware/updatemanager/fileupload/LoginWorker$LoginWorkerException

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

Environment

VMware vCenter Update Manager 6.5.x
VMware vSphere ESXi 6.5

Resolution

To work around this issue, restart the vCenter Update Manager Service by running these commands:

service-control --stop vmware-updatemgr

service-control --start vmware-updatemgr

For more information, see Stopping, starting, or restarting services in vCenter Server Appliance 6.5 (2147152).

Additional Information

Stopping, starting, or restarting services in vCenter Server Appliance 6.5
将 ESXi 主机 ISO 映像上载到 vCenter Update Manager 6.5 失败
ESXi ホスト ISO イメージを vCenter Update Manager 6.5 にアップロードできない