Issues with Libvirt and virt-manager "Unable to complete install: 'XML error: Invalid value for attribute 'protocol' in element 'source': 'file'.'"

General system Applications
1

I recently reinstalled endeavouros and I’m running into issues trying to set up a virtual machine. I was able to use it before I reinstalled my os. I added my user account to the libvirt group

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the same error comes up when I run “sudo systemctl status libvirtd”
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I made a new installation media and tried again, but I’m getting the same errors on a fresh install. At first I thought it might be an issues with firewalld, but I can confirm that it has created a libvirt zone for my virtual connection.

2

Sounds like you have an incorrect value in your xml config. You can check it either via virt-manager (Edit → Virtual Machine Details) or via virsh (virsh edit domainname)
Check this link for proper formatting and accepted values:

3

I don’t have any xml config yet, I can’t create a machine because I get this error every time I try. The only xml I have is the default network, it doesn’t have a protocol entry either.

4

OK, so this is happening when you try to create your first VM, correct? What distro are you installing? Do you have all of these services enabled? Also, when you start virt-manager, does it connect to qemu:///system correctly?

libvirtd.service
libvirtd-ro.socket
libvirtd.socket
virtlockd.socket
virtlogd.socket

I added myself to the libvirt-qemu group as well as libvirtd.

Last question: what version of libvirtd are you running? I noticed that today there was an upgrade of every qemu package; haven’t upgraded it myself yet.

5

Right now I just installed endeavouros from the latest image, I tried using the LTS kernal and the regular but still no luck.
Yes, its happening when I try to create my first VM. I can confirm all those services are running. I added myself to libvirt-qemu group and restarted my computer. I am running libvirt version: 9.0.0, but I was having the same issue before it updated. virt-manager is connecting to qemu:///system
I made a new connection and made sure it was in the libvirt zone with firewalld, but still no luck.

6

For anyone interested: I reinstalled endeavoros, but this time I went with xfce instead of kde, and lo and behold it actually fixed my issue

7

While that makes no sense - I’m also an XFCE user - I’m glad it’s working now. I upgraded this morning without a hitch.