Failed to get udev device for syspath '/sys/devices/virtual/dmi/id'

[Jim Fehlig]

On 9/28/20 5:21 AM, Mathieu Tarral wrote:
> Hi,
> 
> I'm facing an issue with libvirt and the LIBXL driver, failing when searching for DMI data in /sys.
> 
> info : libvirt version: 5.0.0, package: 4+deb10u1 (Guido Günther <agx at sigxcpu.org> Thu, 05 Dec 2019 00:22:14 +0100)
> error : udevGetDMIData:1719 : internal error: Failed to get udev device for syspath '/sys/devices/virtual/dmi/id' or '/sys/class/dmi/id'
> error : libxlDriverConfigNew:1803 : Unable to configure libxl's memory management parameters

Ján already pointed out this is the important error, which usually means the 
xencommons service is not running and the xen tooling has not been initialized. 
Do you see a "Domain-0" using xen's xl tool? E.g. 'xl list'?

Regards,
Jim