Troubleshooting "Win32_OperatingSystem Result Not Found via OMI"
/opt/phoenix/bin/omic -s /opt/phoenix/config/smb.conf -U 'DOMAIN/USER%PASSWORD' // 'SELECT * FROM Win32_OperatingSystem' Use code with caution.
The winrm quickconfig command configures the WinRM service, sets the listener, and opens the firewall if needed.
Fixing the Error: Win32_OperatingSystem Result Not Found Via OMI New win32operatingsystem result not found via omi new
: Ensure the following ports are open on the Windows host's firewall: TCP/135 : RPC Endpoint Mapper. TCP/5985 (HTTP) or 5986 (HTTPS): WinRM/OMI communication. UDP/137 : NetBIOS Name Service. Advanced Troubleshooting
In practice, OMI acts as a CIM server that can run on Linux or Unix systems, allowing administrators to remotely query Windows machines using protocols that Linux understands natively. Microsoft has embedded a modified version of OMI into products like , System Center Operations Manager (SCOM) cross-platform agents, and most notably, Azure Arc-enabled servers .
(Look for OperatingSystem in the output). TCP/5985 (HTTP) or 5986 (HTTPS): WinRM/OMI communication
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for WMI remoting (if using legacy WMI bridge):
On older Windows versions (notably Windows 7), an outdated PowerShell version can cause OMI connectivity failures. Upgrading to PowerShell 3.0 or later may resolve the issue. Microsoft has embedded a modified version of OMI
| Cause | Description | |-------|-------------| | | Win32_OperatingSystem is case-sensitive in some contexts. | | OMI namespace mismatch | Default namespace is root/cimv2 ; other namespaces may not contain this class. | | Insufficient permissions | OMI user lacks WMI read access. | | Corrupted WMI repository | WMI class enumeration fails. | | OMI server not running | OMI service ( omiserver ) down or not installed on target. | | Firewall blocking DCOM/WinRM | OMI uses WinRM (HTTP/HTTPS) by default; blocked ports cause empty results. | | 64-bit vs 32-bit redirection | OMI might be running in 32-bit mode and cannot access 64-bit WMI classes. |
: User Account Control (UAC) filtering or aggressive local endpoint protection blocking remote administration queries.