Last updated on July 21, 2020 by Dan Nanni
virt-manager
, the VM fails to boot with the following error: "unsupported configuration: hda-duplex not supported in this QEMU binary." How can I fix this error?The cause for this VM error may originate from a qemu
bug where a configured default sound card model is not recognized.
Unable to complete install: 'unsupported configuration: hda-duplex not supported in this QEMU library'
To solve this problem, do the following.
virt-manager
On virt-manager
, open the VM's virtual hardware details menu, go to sound device section, and change the device model from default
to ac97
.
Click on Apply
button to save the change. See if you can start the VM now.
virsh
If you are using virsh
, not virt-manager
, you can edit the VM's XML file accordingly. Look for sound
section inside <device> section, and change the sound model to ac97
as follows.
<devices> . . . <sound model='ac97'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </sound> . . . </device>
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