Converter Standalone uses SSH to connect to the Linux source and deploy the agent. Even if you provide valid root credentials, subtle SSH issues can block the query.
Check:
If you have attempted the conversion previously and it failed, leftover agent files can corrupt the new attempt. The "Unable to query" error often appears because the old agent is "zombie" status. Converter Standalone uses SSH to connect to the
Perform a Manual Cleanup:
If the Linux source uses Logical Volume Manager (LVM), Converter must map physical volumes (PV), volume groups (VG), and logical volumes (LV). A single misconfiguration kills the query. Converter must map physical volumes (PV)