VMware VCSA 6.5 – Update Manager had an unknown error when Scan for Updates

VMware VCSA 6.5 – Update Manager had an unknown error when Scan for Updates

few days ago i tried to scan 3 ESXi 6.5 host for new patch, but when i performed the „Scan“ i get eror message:

„VMware vSphere Update Manager had an unknown error. Check the events and log lifes for details“

„Cound not scan host…“

I decided to try reinitialize VUM database… so follow these steps:

1. Connect to the VCSA 6.5 via SSH – for example putty (don´t forget, that you need enable shell & ssh in VAMI)
2. Stop the VUM Service: service-control –stop vmware-updatemgr 
3. Reset the VUM Database: /usr/lib/vmware-updatemgr/bin/updatemgr-util reset-db
4. Delete VUM contents in patch store: rm -rf /storage/updatemgr/patch-store/*
5. Start the VUM Service: service-control –start vmware-updatemgr
6. Log off and Log in into vSphere Web Console and try SCAN 🙂