Cannot start VM on 18.04, "Error making a connection to libvirt URI"

[Joseph Long]

I installed Vagrant (=2.0.2+dfsg-2ubuntu8) from apt on 18.04, and it appears the default provider is libvirt (vagrant-libvirt=0.0.43-2). I made a new Vagrantfile with "vagrant init" and changed the box in the Vagrantfile to "config.vm.box = "ubuntu/bionic64"" before running "vagrant up". This is what I got:

$ vagrant up
Bringing machine 'default' up with 'libvirt' provider...
#<Thread:0x0000559b4b374628@/usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/batch_action.rb:71 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
        25: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/batch_action.rb:82:in `block (2 levels) in run'
        24: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/machine.rb:188:in `action'
        23: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/machine.rb:188:in `call'
        22: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/environment.rb:592:in `lock'
        21: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/machine.rb:202:in `block in action'
        20: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/machine.rb:227:in `action_raw'
        19: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/runner.rb:66:in `run'
        18: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/util/busy.rb:19:in `busy'
        17: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/runner.rb:66:in `block in run'
        16: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builder.rb:116:in `call'
        15: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:34:in `call'
        14: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builtin/config_validate.rb:25:in `call'
        13: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:34:in `call'
        12: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builtin/box_check_outdated.rb:31:in `call'
        11: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:34:in `call'
        10: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builtin/call.rb:52:in `call'
         9: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builder.rb:170:in `to_app'
         8: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/builder.rb:170:in `new'
         7: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:20:in `initialize'
         6: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:20:in `map'
         5: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:20:in `block in initialize'
         4: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:90:in `finalize_action'
         3: from /usr/share/rubygems-integration/all/gems/vagrant-2.0.2/lib/vagrant/action/warden.rb:90:in `new'
         2: from /usr/share/rubygems-integration/all/gems/vagrant-libvirt-0.0.43/lib/vagrant-libvirt/action/create_networks.rb:26:in `initialize'
         1: from /usr/share/rubygems-integration/all/gems/vagrant-libvirt-0.0.43/lib/vagrant-libvirt/driver.rb:40:in `connection'
/usr/share/rubygems-integration/all/gems/vagrant-libvirt-0.0.43/lib/vagrant-libvirt/driver.rb:43:in `rescue in connection': Error while connecting to libvirt: Error making a connection to libvirt URI qemu:///system?no_verify=1&keyfile=/home/jdl/.ssh/id_rsa: (VagrantPlugins::ProviderLibvirt::Errors::FogLibvirtConnectionError)
Call to virConnectOpen failed: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory
Error while connecting to libvirt: Error making a connection to libvirt URI qemu:///system?no_verify=1&keyfile=/home/jdl/.ssh/id_rsa:
Call to virConnectOpen failed: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[ugmoe2000 (ericpulvino)]

Have you installed the vagrant-libvirt plugin from the same user?
i.e. vagrant plugin install vagrant-libvirt

It's only when you do this that you'll be able to drive libvirt VMs AFAIK.

[Pavel P (pavel-mushroom)]

$ vagrant plugin install vagrant-libvirt
$ sudo /etc/init.d/sudo apt install qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils virt-manager
$ sudo adduser pavel libvirt
$ sudo adduser pavel libvirt-qemu
$ sudo /etc/init.d/libvirtd restart

[Edie Zhang (ezhang)]

Which version of virtualbox do you use? I found only virtualbox-5.2 works. I got the same problem with virtualbox-6.0

[Abelardo (abelardolg)]

Hi there,
When I run the following command:

vagrant plugin install vagrant-libvirt

I got the error which is shown at the attached screenshot.

Using:
Distributor ID: Ubuntu
Description: Ubuntu 19.10
Release: 19.10
Codename: eoan

What's wrong?