Arch Linux

pwouik

Member

Registered: 2025-02-08

Posts: 7

virt manager: Could not access KVM kernel module: No such file or dire

when creating the vm, at some point I started getting this

2025-05-25T01:02:40.655441Z qemu-system-x86_64: -accel kvm: Could not access KVM kernel module: No such file or directory
2025-05-25T01:02:40.655462Z qemu-system-x86_64: -accel kvm: failed to initialize kvm: No such file or directory »

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 71, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
    ~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/share/virt-manager/virtManager/createvm.py", line 2008, in _do_async_install
    installer.start_install(guest, meter=meter)
    ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 726, in start_install
    domain = self._create_guest(
            guest, meter, initial_xml, final_xml,
            doboot, transient)
  File "/usr/share/virt-manager/virtinst/install/installer.py", line 667, in _create_guest
    domain = self.conn.createXML(initial_xml or final_xml, 0)
  File "/usr/lib/python3.13/site-packages/libvirt.py", line 4590, in createXML
    raise libvirtError('virDomainCreateXML() failed')
libvirt.libvirtError: internal error: process exited while connecting to monitor: 2025-05-25T01:02:40.655441Z qemu-system-x86_64: -accel kvm: Could not access KVM kernel module: No such file or directory
2025-05-25T01:02:40.655462Z qemu-system-x86_64: -accel kvm: failed to initialize kvm: No such file or directory

modprobe kvm-intel report no problems, vtx is enabled in bios
libvirtd service is running

~ dkms status
i915-sriov-dkms/2025.05.11, 6.14.7-arch2-1, x86_64: installed (Original modules exist)
looking-glass/B7, 6.14.7-arch2-1, x86_64: installed

pwouik

Member

Registered: 2025-02-08

Posts: 7

Re: virt manager: Could not access KVM kernel module: No such file or dire

it is working after using:
chown root:kvm /dev/kvm
but it come back everytime virt manager does something

I tried creating this udev rule as some recommend but it doesn't change anything:
/etc/udev/rules.d/65-kvm.rules
KERNEL=="kvm", GROUP="kvm", MODE="0666"

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,870

Re: virt manager: Could not access KVM kernel module: No such file or dire

Please post the output of

stat /dev/kvm

after a fresh boot.

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky

pwouik

Member

Registered: 2025-02-08

Posts: 7

Re: virt manager: Could not access KVM kernel module: No such file or dire

Fichier : /dev/kvm
   Taille : 0             Blocs : 0          Blocs d'E/S : 4096   fichier spécial de caractères
Périphérique : 0/6    Inœud : 742         Liens : 1     Type de périph. : 10,232
Accès : (0660/crw-rw----)  UID : (    0/    root)   GID : (  946/ plugdev)
Accès : 2025-05-30 12:26:33.070215160 +0200
Modif. : 2025-05-30 12:26:33.070215160 +0200
Changt : 2025-05-30 12:26:33.070215160 +0200
  Créé : 2025-05-30 12:26:18.587999863 +0200

pwouik

Member

Registered: 2025-02-08

Posts: 7

Re: virt manager: Could not access KVM kernel module: No such file or dire

I grepped plugdev in etc and it was only stuff from the leapmotion sdk, after unistalling it I correctly have the kvm group on kvm

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,870

Re: virt manager: Could not access KVM kernel module: No such file or dire

If that comes from a repo / aur package, it probably needs changes to prevent the issue.

In case of 3rd party software, it may be one of the (many) cases where upstream instructions fail on archlinux.

---

Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky