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The VMware vCenter Converter Standalone is a powerful tool, but it often hits a wall when dealing with Linux distributions. One of the most frustrating errors is the "Unable to query the live Linux source machine" message. This error usually triggers during the initial source selection phase, preventing you from even starting the conversion process. Essential Prerequisites
Converter Standalone relies on certain standard Linux utilities to query system information. If missing, the agent cannot complete its inventory.
To resolve the error, follow these troubleshooting steps:
: The vmware-sysinfo.sh script executes locally on the Linux server. It inventories block devices, file systems, logical volume groups (LVM), and network interfaces, formatting the data as an XML payload passed back to the Windows worker service. The VMware vCenter Converter Standalone is a powerful
On many Linux distributions, the root user is disabled for SSH logins by default for security. You need to enable it temporarily for the migration.
Here is a comprehensive guide to diagnosing and fixing the root causes of this issue. 1. Verify SSH and Root Access
Search for the string or "failed" near the timestamp of your connection attempt. It inventories block devices, file systems, logical volume
By default, many modern Linux distributions (like Ubuntu or newer RHEL) disable direct root login via SSH.
If you are using an older version of VMware Converter (like 6.2) to query a very new Linux distro (like Ubuntu 22.04 or RHEL 9), the handshake might fail due to deprecated SSL protocols or ciphers.
💿 Remember that the standalone converter does not support native Software RAID (MDRAID) setups. Don’t keep SELinux disabled permanently.
Check /etc/hosts.allow and /etc/hosts.deny to ensure the Converter’s IP isn't being restricted. 6. Analyze the Logs for Specific Triggers
If the conversion works, you’ll need to create a policy later. Don’t keep SELinux disabled permanently.