Hi, Andrea

Thank you for your help, but I did not figure out how to deal with the dsc and rebuilding package stuff yet.

Also, I compiled and installed the libvirt-8.5.0 source code from https://libvirt.org/sources/.

The build command I used is:

meson build -Dsystem=true -Ddriver_interface=enabled -Ddriver_libvirtd=enabled -Ddriver_network=enabled -Ddriver_qemu=enabled -Ddriver_remote=enabled -Dnumactl=enabled -Dnumad=enabled -Dstorage_disk=enabled

Now my question is how to start the libvird? My OS is Ubuntu20.

According to https://libvirt.org/compiling.html, when I tried # service libvirtd stop (or systemctl stop libvirtd.service), under build/src directory

The system reports error: Failed to start/stop libvirtd.service: Unit libvirtd.service not found.

Thank You

Best

Jin Huang

On Wed, Aug 10, 2022 at 2:17 AM Andrea Bolognani <abologna@redhat.com> wrote:

On Tue, Aug 09, 2022 at 01:26:55PM +0200, Michal Prívozník wrote:
> On 8/9/22 12:55, Jin Huang wrote:
> > Hi, everyone
> > I built the libvirt 8.6.0 on my Ubuntu 20 system with the options like this:
> > meson build -Dsystem=true -Ddriver_interface=enabled
> > -Ddriver_libvirtd=enabled -Ddriver_network=enabled -Ddriver_qemu=enabled
> > -Ddriver_remote=enabled -Dnumactl=enabled -Dnumad=enabled
> > -Dstorage_disk=enabled
> >
> > (1)After installation, when I tried to start the libvirtd, I get this
> > error message:
> > error : virNetworkObjAssignDefLocked:576 : operation failed: network
> > 'default' already exists with uuid 7477a9f5-02d3-4fbc-b0e8-d7229d39a6a2
> >
> > (2)When try the virsh command, I get this error message:
> > virsh: /lib/x86_64-linux-gnu/libvirt-qemu.so.0: version
> > `LIBVIRT_QEMU_8.2.0' not found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_8.0.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_8.5.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_6.10.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_7.7.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_7.8.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_7.2.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_7.1.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version `LIBVIRT_7.3.0' not
> > found (required by virsh)
> > virsh: /lib/x86_64-linux-gnu/libvirt.so.0: version
> > `LIBVIRT_PRIVATE_8.6.0' not found (required by virsh)
> >
> > Could anyone give me some suggestions to fix these issues?
>
> This is pretty much expected if you had libvirt installed from your
> package manager (which I believe is the case because of the network
> error). I don't know what the correct way to build a .deb package is,
> but on rpm based distros I usually build a .tar.xz (meson dist) from
> which I build a .rpm (rpmbuild -ta) and then install it.

You could grab the source package for the latest version of libvirt
available in Debian, which would be

https://deb.debian.org/debian/pool/main/libv/libvirt/libvirt_8.5.0-1.dsc

right now, and then follow the instructions in

https://wiki.debian.org/BuildingTutorial#Get_the_source_package

to rebuild it locally targeting your release of Ubuntu. Since it's
not insanely old, I expect that would work just fine.

--
Andrea Bolognani / Red Hat / Virtualization