mirror of
https://gitlab.com/libvirt/libvirt.git
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1423c1d8bc
tar on macOS recognizes XZ compression automatically, but that is not the case for GNU tar (1.32 at least). On Fedora 33 the current instructions result in the following error: $ xz -c libvirt-6.9.0.tar.xz | tar xvf - tar: Archive is compressed. Use -J option tar: Error is not recoverable: exiting now Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Jonathan Watt <jwatt@jwatt.org>
114 lines
3.1 KiB
XML
114 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<body>
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<h1><a id="installation">libvirt Installation</a></h1>
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<ul id="toc"></ul>
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<h2><a id="compiling">Compiling a release tarball</a></h2>
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<p>
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libvirt uses the standard setup/build/install steps and mandates
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that the build directory is different from the source directory:
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</p>
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<pre>
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$ xz -dc libvirt-x.x.x.tar.xz | tar xvf -
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$ cd libvirt-x.x.x
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$ meson build</pre>
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<p>
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The <i>meson</i> script can be given options to change its default
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behaviour.
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</p>
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<p>
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To get the complete list of the options run the following command:
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</p>
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<pre>
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$ meson configure</pre>
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<p>
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When you have determined which options you want to use (if any),
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continue the process.
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</p>
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<p>
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Note the use of <b>sudo</b> with the <i>ninja install</i> command
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below. Using sudo is only required when installing to a location your
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user does not have write access to. Installing to a system location
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is a good example of this.
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</p>
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<p>
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If you are installing to a location that your user <i>does</i> have write
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access to, then you can instead run the <i>ninja install</i> command
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without putting <b>sudo</b> before it.
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</p>
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<pre>
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$ meson build <i>[possible options]</i>
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$ ninja -C build
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$ <b>sudo</b> <i>ninja -C build install</i></pre>
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<p>
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At this point you <b>may</b> have to run ldconfig or a similar utility
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to update your list of installed shared libs.
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</p>
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<h2><a id="building">Building from a GIT checkout</a></h2>
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<p>
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The libvirt build process uses Meson build system. By default when
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the <code>meson</code> is run from within a GIT checkout, it
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will turn on -Werror for builds. This can be disabled with
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--werror=false, but this is not recommended.
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</p>
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<p>To build & install libvirt to your home
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directory the following commands can be run:
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</p>
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<pre>
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$ meson build --prefix=$HOME/usr
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$ ninja -C build
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$ <b>sudo</b> ninja -C build install</pre>
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<p>
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Be aware though, that binaries built with a custom prefix will not
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interoperate with OS vendor provided binaries, since the UNIX socket
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paths will all be different. To produce a build that is compatible
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with normal OS vendor prefixes, use
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</p>
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<pre>
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$ meson build -Dsystem=true
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$ ninja -C build
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</pre>
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<p>
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When doing this for day-to-day development purposes, it is recommended
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not to install over the OS vendor provided binaries. Instead simply
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run libvirt directly from the source tree. For example to run
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a privileged libvirtd instance
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</p>
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<pre>
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$ su -
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# service libvirtd stop (or systemctl stop libvirtd.service)
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# /home/to/your/checkout/src/libvirtd
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</pre>
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<p>
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It is also possible to run virsh directly from the source tree
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using the ./run script (which sets some environment variables):
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</p>
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<pre>
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$ ./run ./tools/virsh ....
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</pre>
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</body>
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</html>
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