Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[nquinnathome1]

On Thu, 22 Feb 2018 19:05:25 +0100 Guido =?iso-8859-1?Q?G=FCnther?=  wrote:
> On Thu, Feb 15, 2018 at 09:45:03AM -0800, Josh Triplett wrote:
> > Package: gnome-boxes
> > Version: 3.26.2-3
> > Followup-For: Bug #889990
> > 
> > I've encountered this issue as well, with the current version in
> > unstable.
> 
> Likely your user is not in the libvirt group and so the list of CPUs
> available for KVM is empty. Could you try 
> 
> adduser  kvm
> 
> If that helps we should probably give rw permissions to the currently
> logged in user via logind (as done with the audio and video devices
> already).
> 
> Cheers,
>  -- Guido
> 
> 

This solves the issue for me; thanks.

Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[Julien Viard de Galbert]

Package: gnome-boxes
Version: 3.26.2-3
Followup-For: Bug #889990

Dear Maintainer,

I was having the same issue on a derivative distribution (pureos).
After discussing on their bug system they found that the user should be
in the kvm group.
You can see the discussion there: https://tracker.pureos.net/T320

so you can try:
   sudo adduser  kvm
   newgrp kvm
   gnome-boxes

And see if it works for you !

Hope this helps,

Julien VdG

-- System Information:
Distributor ID: PureOS
Description:PureOS GNU/Linux 8
Release:8
Codename:   green
Architecture: x86_64

Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8), 
LANGUAGE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-boxes depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.1-3
ii  libarchive13 3.2.2-3.1
ii  libc62.26-6
ii  libcairo-gobject21.15.10-1
ii  libcairo21.15.10-1
ii  libgdk-pixbuf2.0-0   2.36.11-1
ii  libglib2.0-0 2.54.3-2
ii  libgovirt2   0.3.4-2
ii  libgtk-3-0   3.22.26-2
ii  libgtk-vnc-2.0-0 0.7.1-1
ii  libgudev-1.0-0   232-2
ii  libosinfo-1.0-0  1.1.0-1
ii  libosinfo-bin1.1.0-1
ii  libpango-1.0-0   1.40.14-1
ii  libpangocairo-1.0-0  1.40.14-1
ii  librest-0.7-00.8.0-2
ii  libsecret-1-00.18.5-6
ii  libsoup2.4-1 2.60.3-1
ii  libspice-client-glib-2.0-8   0.34-1.1
ii  libspice-client-gtk-3.0-50.34-1.1
ii  libtracker-sparql-2.0-0  2.0.3-1
ii  libusb-1.0-0 2:1.0.21-2
ii  libvirt-daemon   4.0.0-2
ii  libvirt-glib-1.0-0   1.0.0-1
ii  libxml2  2.9.4+dfsg1-6.1
ii  mtools   4.0.18-2+b1
ii  tracker  2.0.3-1

Versions of packages gnome-boxes recommends:
ii  qemu-system-x86  1:2.11+dfsg-1

gnome-boxes suggests no packages.

-- no debconf information

Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[Guido Günther]

On Thu, Feb 15, 2018 at 09:45:03AM -0800, Josh Triplett wrote:
> Package: gnome-boxes
> Version: 3.26.2-3
> Followup-For: Bug #889990
> 
> I've encountered this issue as well, with the current version in
> unstable.

Likely your user is not in the libvirt group and so the list of CPUs
available for KVM is empty. Could you try 

adduser  kvm

If that helps we should probably give rw permissions to the currently
logged in user via logind (as done with the audio and video devices
already).

Cheers,
 -- Guido

Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[Josh Triplett]

Package: gnome-boxes
Version: 3.26.2-3
Followup-For: Bug #889990

I've encountered this issue as well, with the current version in
unstable.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.14.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE=C.UTF-8 
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gnome-boxes depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.1-3
ii  libarchive13 3.2.2-3.1
ii  libc62.26-6
ii  libcairo-gobject21.15.10-1
ii  libcairo21.15.10-1
ii  libgdk-pixbuf2.0-0   2.36.11-1
ii  libglib2.0-0 2.54.3-2
ii  libgovirt2   0.3.4-2
ii  libgtk-3-0   3.22.26-2
ii  libgtk-vnc-2.0-0 0.7.1-1
ii  libgudev-1.0-0   232-2
ii  libosinfo-1.0-0  1.1.0-1
ii  libosinfo-bin1.1.0-1
ii  libpango-1.0-0   1.40.14-1
ii  libpangocairo-1.0-0  1.40.14-1
ii  librest-0.7-00.8.0-2
ii  libsecret-1-00.18.5-6
ii  libsoup2.4-1 2.60.3-1
ii  libspice-client-glib-2.0-8   0.34-1.1
ii  libspice-client-gtk-3.0-50.34-1.1
ii  libtracker-sparql-2.0-0  2.0.2-1
ii  libusb-1.0-0 2:1.0.21-2
ii  libvirt-daemon   4.0.0-1
ii  libvirt-glib-1.0-0   1.0.0-1
ii  libxml2  2.9.4+dfsg1-6.1
ii  mtools   4.0.18-2+b1
ii  tracker  2.0.2-1

Versions of packages gnome-boxes recommends:
ii  qemu-system-x86  1:2.11+dfsg-1

gnome-boxes suggests no packages.

-- no debconf information

Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[Jeremy Bicha]

On Fri, Feb 9, 2018 at 2:30 PM, Nick Quinn
 wrote:
> gnome-boxes is unusable for me as every time I start a VM it throws this 
> error.

Please report this bug upstream since there doesn't appear to be any
Debian-specific reason for this problem.

https://gitlab.gnome.org/GNOME/gnome-boxes/issues

Thanks,
Jeremy Bicha

Bug#889990: gnome-boxes: Unable to start VMs because CPU mode 'custom' for x86_64 kvm domain on x86_64 host is not supported

[Nick Quinn]

Package: gnome-boxes
Version: 3.27.90-1
Severity: important

Dear Maintainer,

gnome-boxes is unusable for me as every time I start a VM it throws this error.

I can create and run VMs with libvirt using virt-manager, but if I import those 
VMs into gnome-boxes, immediately the same error is thrown.

If I attempt to manually amend the gnome boxes config for the VM 
(boxes-unknown) to the correct CPU config, then as soon as gnome-boxes tries to 
start the VM again, it overwrites the change.


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (500, 'testing'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.14.0-3-amd64 (SMP w/16 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gnome-boxes depends on:
ii  dconf-gsettings-backend [gsettings-backend]  0.26.1-3
ii  libarchive13 3.2.2-3.1
ii  libc62.26-4
ii  libcairo21.15.10-1
ii  libgdk-pixbuf2.0-0   2.36.11-1
ii  libglib2.0-0 2.54.3-2
ii  libgovirt2   0.3.4-2
ii  libgtk-3-0   3.22.26-2
ii  libgtk-vnc-2.0-0 0.7.1-1
ii  libgudev-1.0-0   232-2
ii  libosinfo-1.0-0  1.1.0-1
ii  libosinfo-bin1.1.0-1
ii  libpango-1.0-0   1.40.14-1
ii  librest-0.7-00.8.0-2
ii  libsecret-1-00.18.5-6
ii  libsoup2.4-1 2.60.3-1
ii  libspice-client-glib-2.0-8   0.34-1.1
ii  libspice-client-gtk-3.0-50.34-1.1
ii  libtracker-sparql-2.0-0  2.0.2-1
ii  libusb-1.0-0 2:1.0.21-2
ii  libvirt-daemon   4.0.0-1
ii  libvirt-glib-1.0-0   1.0.0-1
ii  libwebkit2gtk-4.0-37 2.18.6-1
ii  libxml2  2.9.4+dfsg1-6.1
ii  mtools   4.0.18-2+b1
ii  tracker  2.0.2-1

Versions of packages gnome-boxes recommends:
ii  qemu-system-x86  1:2.11+dfsg-1

gnome-boxes suggests no packages.

-- no debconf information