Virt-manager cannot find virtiofsd

Help
1

I can start a VM from virt-manager, however, I cannot define shared directory. I see a popup window with error message.

Error starting domain: operation failed: Unable to find a satisfying virtiofsd

Traceback (most recent call last):
  File "/nix/store/k7gq8j86xhdqvqfdqqw7pyg9agpnaf7r-virt-manager-4.1.0/share/virt-manager/virtManager/asyncjob.py", line 72, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/nix/store/k7gq8j86xhdqvqfdqqw7pyg9agpnaf7r-virt-manager-4.1.0/share/virt-manager/virtManager/asyncjob.py", line 108, in tmpcb
    callback(*args, **kwargs)
  File "/nix/store/k7gq8j86xhdqvqfdqqw7pyg9agpnaf7r-virt-manager-4.1.0/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
  File "/nix/store/k7gq8j86xhdqvqfdqqw7pyg9agpnaf7r-virt-manager-4.1.0/share/virt-manager/virtManager/object/domain.py", line 1402, in startup
    self._backend.create()
  File "/nix/store/90qb43zkg0kyl7n3bs3l1q5v93s7883d-python3.10-libvirt-8.10.0/lib/python3.10/site-packages/libvirt.py", line 1373, in create
    raise libvirtError('virDomainCreate() failed')
libvirt.libvirtError: operation failed: Unable to find a satisfying virtiofsd

I did follow instructions on following sites.

I updated channel NixOS 22.11 and rebuilt the system; Same error.

What should I do to fix this error?

3 Likes
2

add virtiofsd into your systemPackages and add following into virt-manager filesystem xml:

  <binary path="/run/current-system/sw/bin/virtiofsd"/>
10 Likes
3

Is there a different approach now?

$ find /run/current-system/ -iname *virtiofsd*

$ /run/current-system/sw/bin/virtiofsd
bash: /run/current-system/sw/bin/virtiofsd: No such file or directory
4

I used

[user@nixos:~]$ which virtiofsd
/etc/profiles/per-user/user/bin/virtiofsd
5

Works for machine startup, thanks.

6

Im now getting this error

image
image1196Ă—56 9.29 KB

But my config is the same as the instructions…

image
image742Ă—176 18.5 KB

image
image742Ă—176 10.5 KB

Any ideas?

7

image
more info

8

Hi! Have you checked your source dir? In the screenshot, fourth line you have a typo. It reads Pyhton instead of Python.

9

That was not a typo. I got this working. Still not sure how though…

1 Like
10

The recommended way to solve this problem is now to add pkgs.virtiofsd to virtualisation.libvirtd.qemu.vhostUserPackages:

virtualisation.libvirtd = {
  enable = true;
  qemu.vhostUserPackages = with pkgs; [ virtiofsd ];
};

This way, you don’t have to edit each domain’s XML configuration (which was not feasible in my case, using Vagrant).

11 Likes
11

Hi!
After having the same issue and finding this thread. I added your solution to the wiki:
https://wiki.nixos.org/wiki/Virt-manager

2 Likes