Virtual Machine Manager cannot create new virtual machines

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RaevenantOP•2/12/25, 11:20 PM

@tulip whenever you get some time, the virt-manager flatpak doesn't appear to be quite ootb

RRaevenant @tulip whenever you get some time, the virt-manager flatpak doesn't appear to be...

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tulip•2/12/25, 11:20 PM

hmm?

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RaevenantOP•2/12/25, 11:21 PM

Could not start virtual network 'default': cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Traceback (most recent call last):
  File "/app/share/virt-manager/virtManager/device/netlist.py", line 208, in _check_network_is_running
    netobj.start()
  File "/app/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/virt-manager/virtManager/object/network.py", line 69, in start
    self._backend.create()
  File "/app/lib/python3.12/site-packages/libvirt.py", line 3569, in create
    raise libvirtError('virNetworkCreate() failed')
libvirt.libvirtError: cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Could not start virtual network 'default': cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Traceback (most recent call last):
  File "/app/share/virt-manager/virtManager/device/netlist.py", line 208, in _check_network_is_running
    netobj.start()
  File "/app/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/virt-manager/virtManager/object/network.py", line 69, in start
    self._backend.create()
  File "/app/lib/python3.12/site-packages/libvirt.py", line 3569, in create
    raise libvirtError('virNetworkCreate() failed')
libvirt.libvirtError: cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Could not start virtual network 'default': cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Traceback (most recent call last):
  File "/app/share/virt-manager/virtManager/device/netlist.py", line 208, in _check_network_is_running
    netobj.start()
  File "/app/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/virt-manager/virtManager/object/network.py", line 69, in start
    self._backend.create()
  File "/app/lib/python3.12/site-packages/libvirt.py", line 3569, in create
    raise libvirtError('virNetworkCreate() failed')
libvirt.libvirtError: cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Could not start virtual network 'default': cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

Traceback (most recent call last):
  File "/app/share/virt-manager/virtManager/device/netlist.py", line 208, in _check_network_is_running
    netobj.start()
  File "/app/share/virt-manager/virtManager/object/libvirtobject.py", line 57, in newfn
    ret = fn(self, *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/share/virt-manager/virtManager/object/network.py", line 69, in start
    self._backend.create()
  File "/app/lib/python3.12/site-packages/libvirt.py", line 3569, in create
    raise libvirtError('virNetworkCreate() failed')
libvirt.libvirtError: cannot create directory /var/lib/libvirt/dnsmasq: Permission denied

RRaevenant Click to see attachment

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tulip•2/12/25, 11:21 PM

you need to use the user session

Ttulip you need to use the user session

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RaevenantOP•2/12/25, 11:21 PM

huh?

R

RaevenantOP•2/12/25, 11:21 PM

I don't understand

RRaevenant huh?

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tulip•2/12/25, 11:21 PM

you know when you connect to libvirt?

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tulip•2/12/25, 11:21 PM

on the menu there

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tulip•2/12/25, 11:21 PM

theres a QEMU/KVM one

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tulip•2/12/25, 11:21 PM

and theres a QEMU/KVM user session

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RaevenantOP•2/12/25, 11:21 PM

this?

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RaevenantOP•2/12/25, 11:21 PM

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tulip•2/12/25, 11:21 PM

yeah theres another one

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RaevenantOP•2/12/25, 11:22 PM

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tulip•2/12/25, 11:22 PM

File -> add chungus

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RaevenantOP•2/12/25, 11:22 PM

oooooooh, is this the "privilaged" network option you were talking about?

RRaevenant oooooooh, is this the "privilaged" network option you were talking about?

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tulip•2/12/25, 11:22 PM

yeeeah

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tulip•2/12/25, 11:22 PM

the other one should work just fine

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tulip•2/12/25, 11:22 PM

check it out!

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RaevenantOP•2/12/25, 11:24 PM

heyoooooo, that worked!

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RaevenantOP•2/12/25, 11:25 PM

Thanks a ton Tulip

amazingly helpful as always

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blake•2/16/25, 12:29 AM

I wanted to jump on here if that's ok. Having the exact same issue as @Raevenant . On the menu I can only see a QEMU/KVM option. I can add a user session if i go file > add conneciton > hypervisor > QEMU/KVM user session, hwoever if i try to start a VM under that user session it says "error: no hypervisor options were found for this connection"

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blake•2/16/25, 12:30 AM

Bblake I wanted to jump on here if that's ok. Having the exact same issue as @Raevenant...

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tulip•2/16/25, 12:30 AM

try adding the extension

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tulip•2/16/25, 12:30 AM

here:

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tulip•2/16/25, 12:30 AM

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tulip•2/16/25, 12:31 AM

if you wanna do it on the command line it should be

flatpak install -y org.virt_manager.virt_manager.Extension.Qemu

flatpak install -y org.virt_manager.virt_manager.Extension.Qemu

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blake•2/16/25, 12:31 AM

god im such an idiot haha i dont see where i would find that page

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blake•2/16/25, 12:31 AM

is that within VMM?

Bblake is that within VMM?

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tulip•2/16/25, 12:31 AM

yup!!

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tulip•2/16/25, 12:31 AM

nonononoon

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tulip•2/16/25, 12:31 AM

tahts on your terminal

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tulip•2/16/25, 12:32 AM

just search up terminal on your desktop

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blake•2/16/25, 12:32 AM

oh no i see the terminal command you listed earlier

Ttulip Click to see attachment

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blake•2/16/25, 12:32 AM

i was askingf if this was in VMM

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blake•2/16/25, 12:32 AM

this graphical interface

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tulip•2/16/25, 12:32 AM

yeah!

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tulip•2/16/25, 12:32 AM

virtual machine manager

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blake•2/16/25, 12:32 AM

B

blake•2/16/25, 12:32 AM

like where tho hahaah

Bblake Click to see attachment

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tulip•2/16/25, 12:32 AM

wait

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tulip•2/16/25, 12:32 AM

ooooooh

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tulip•2/16/25, 12:32 AM

open up your terminal

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tulip•2/16/25, 12:32 AM

type out that thing

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tulip•2/16/25, 12:32 AM

then creating vms should just work

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tulip•2/16/25, 12:33 AM

suddenly

Bblake Click to see attachment

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tulip•2/16/25, 12:33 AM

on that Qemu/KVM User Session