virsh capabilities does not include qemu
Hi, I am new to Libvirt and Qemu.I have installed Libvirt 7.1.0 and qemu-kvm 4.2.0. I configured and built libvirt based on instructions from https://libvirt.org/compiling.html. But when i tried to create a VM using virsh it shows the following error: # virsh create /home/abc.xml error: Failed to create domain from /home/abc.xml error: invalid argument: could not find capabilities for arch=x86_64 domaintype=kvm When i check the hypervisor capabilities ,it doest show qemu in guest domain type. # virsh capabilities .................................... ..................................... </host> <guest> <os_type>exe</os_type> <arch name='x86_64'> <wordsize>64</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator> <domain type='lxc'/> </arch> </guest> <guest> <os_type>exe</os_type> <arch name='i686'> <wordsize>32</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator> <domain type='lxc'/> </arch> </guest> </capabilities> I have restarted libvirt to get the qemu support,but it is not shown in capabilities list.What will be the problem? Thanks for the help in advance....
On 3/22/21 5:17 AM, shafnamol N wrote:
Hi, I am new to Libvirt and Qemu.I have installed Libvirt 7.1.0 and qemu-kvm 4.2.0. I configured and built libvirt based on instructions from https://libvirt.org/compiling.html <https://libvirt.org/compiling.html>. But when i tried to create a VM using virsh it shows the following error: # virsh create /home/abc.xml error: Failed to create domain from /home/abc.xml error: invalid argument: could not find capabilities for arch=x86_64 domaintype=kvm
When i check the hypervisor capabilities ,it doest show qemu in guest domain type. # virsh capabilities .................................... ..................................... </host>
<guest> <os_type>exe</os_type> <arch name='x86_64'> <wordsize>64</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator> <domain type='lxc'/> </arch> </guest>
<guest> <os_type>exe</os_type> <arch name='i686'> <wordsize>32</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator>
This smells suspicious. Perhaps you did not pass proper prefix (meson -Dsystem=true)? Anyway, libvirt tries to find qemu-system-$arch in $PATH and falls back to /usr/libexec/qemu-kvm if no binary was found. So I suspect that maybe the directory you installed QEMU into is not in $PATH? Michal
On Mon, Mar 22, 2021 at 01:57:24PM +0100, Michal Privoznik wrote:
On 3/22/21 5:17 AM, shafnamol N wrote:
Hi, I am new to Libvirt and Qemu.I have installed Libvirt 7.1.0 and qemu-kvm 4.2.0. I configured and built libvirt based on instructions from https://libvirt.org/compiling.html <https://libvirt.org/compiling.html>. But when i tried to create a VM using virsh it shows the following error: # virsh create /home/abc.xml error: Failed to create domain from /home/abc.xml error: invalid argument: could not find capabilities for arch=x86_64 domaintype=kvm
When i check the hypervisor capabilities ,it doest show qemu in guest domain type. # virsh capabilities .................................... ..................................... </host>
<guest> <os_type>exe</os_type> <arch name='x86_64'> <wordsize>64</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator> <domain type='lxc'/> </arch> </guest>
<guest> <os_type>exe</os_type> <arch name='i686'> <wordsize>32</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator>
This smells suspicious. Perhaps you did not pass proper prefix (meson -Dsystem=true)?
Anyway, libvirt tries to find qemu-system-$arch in $PATH and falls back to /usr/libexec/qemu-kvm if no binary was found. So I suspect that maybe the directory you installed QEMU into is not in $PATH?
This capabiliities output is showing an lxc:///system driver connection too, not QEMU. So I suspect libvirt was perhaps built without QEMU support ? Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
Hi, I didnt pass prefix while building. So I tried *meson build -Dsystem=true* It worked for me.Now virsh shows kvm and qemu in its capabilities and could create a new VM using virsh create. Thanks for your valuable time. Thanks, Shafnamol.N On Mon, Mar 22, 2021 at 6:40 PM Daniel P. Berrangé <berrange@redhat.com> wrote:
On Mon, Mar 22, 2021 at 01:57:24PM +0100, Michal Privoznik wrote:
On 3/22/21 5:17 AM, shafnamol N wrote:
Hi, I am new to Libvirt and Qemu.I have installed Libvirt 7.1.0 and qemu-kvm 4.2.0. I configured and built libvirt based on instructions from https://libvirt.org/compiling.html <https://libvirt.org/compiling.html . But when i tried to create a VM using virsh it shows the following error: # virsh create /home/abc.xml error: Failed to create domain from /home/abc.xml error: invalid argument: could not find capabilities for arch=x86_64 domaintype=kvm
When i check the hypervisor capabilities ,it doest show qemu in guest domain type. # virsh capabilities .................................... ..................................... </host>
<guest> <os_type>exe</os_type> <arch name='x86_64'> <wordsize>64</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator> <domain type='lxc'/> </arch> </guest>
<guest> <os_type>exe</os_type> <arch name='i686'> <wordsize>32</wordsize> <emulator>/usr/local/libexec/libvirt_lxc</emulator>
This smells suspicious. Perhaps you did not pass proper prefix (meson -Dsystem=true)?
Anyway, libvirt tries to find qemu-system-$arch in $PATH and falls back to /usr/libexec/qemu-kvm if no binary was found. So I suspect that maybe the directory you installed QEMU into is not in $PATH?
This capabiliities output is showing an lxc:///system driver connection too, not QEMU. So I suspect libvirt was perhaps built without QEMU support ?
Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|
participants (3)
-
Daniel P. Berrangé -
Michal Privoznik -
shafnamol N