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[http://libguestfs.org/ libguestfs is a set to virt tools and a library for viewing, editing and inspecting virtual machines and disk images]. | [http://libguestfs.org/ libguestfs is a set to virt tools and a library for viewing, editing and inspecting virtual machines and disk images]. Some of the tools include [http://libguestfs.org/guestfish.1.html guestfish], [http://libguestfs.org/virt-df.1.html virt-df], [http://libguestfs.org/virt-edit.1.html virt-edit], [http://libguestfs.org/virt-inspector.1.html virt-inspector], [http://libguestfs.org/virt-rescue.1.html virt-rescue], [http://libguestfs.org/virt-resize.1.html virt-resize], [http://libguestfs.org/virt-sparsify.1.html virt-sparsify], [http://libguestfs.org/virt-win-reg.1.html virt-win-reg]. | ||
In [[Releases/17|Fedora 17]], libguestfs 1.17.x will be available (upgraded from 1.10 in Fedora 15 and 1.16 in Fedora 16). | In [[Releases/17|Fedora 17]], libguestfs 1.17.x will be available (upgraded from 1.10 in Fedora 15 and 1.16 in Fedora 16). | ||
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$ time guestfish -a /dev/null run | $ time guestfish -a /dev/null run | ||
Run this a few times so the cache is "hot". As a typical guide, you should see times like: | <b>Run this a few times so the cache is "hot".</b> Note that the first time you run it, it creates a cached appliance (in <code>/var/tmp/.guestfs-*</code>) so that is much slower. As a typical guide, you should see times like: | ||
* 3-6 seconds, on modern hardware with virtualization extensions | * 3-6 seconds, on modern hardware with virtualization extensions and KVM enabled | ||
* | * 30-60 seconds, in a VM | ||
If you get times wildly outside these ranges, let us know. Unless you're using an AMD Geode, in which case sorry. | |||
== Tests == | |||
There is a good set of tests upstream, and rather than just copying them here, follow the link: | |||
http://libguestfs.org/guestfs-testing.1.html | |||
== Bugs == | |||
If you find bugs, please file them using this link: | |||
https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools | |||
== IRC and mailing list == | |||
During the test day (2012-04-12) we will be on the #fedora-test-day IRC channel. The rest of the time, find us on #libguestfs (on FreeNode). There is also a [http://www.redhat.com/mailman/listinfo/libguestfs mailing list]. | |||
Latest revision as of 13:35, 3 April 2012
libguestfs is a set to virt tools and a library for viewing, editing and inspecting virtual machines and disk images. Some of the tools include guestfish, virt-df, virt-edit, virt-inspector, virt-rescue, virt-resize, virt-sparsify, virt-win-reg.
In Fedora 17, libguestfs 1.17.x will be available (upgraded from 1.10 in Fedora 15 and 1.16 in Fedora 16).
Requirements[edit]
You will need a Fedora 17 machine. Having at least one guest will be very helpful.
You can test libguestfs inside an F17 virtual machine, but it will run a lot slower. For best performance, run the tests in F17 running on baremetal with VT extensions.
Installing libguestfs and the virt tools[edit]
As root, do:
# yum install libguestfs-tools
If you want to write libguestfs scripts or programs, install one of the language bindings, eg:
# yum install libguestfs-devel \
perl-Sys-Guestfs python-libguestfs \
ruby-libguestfs ocaml-libguestfs-devel
Basic checks[edit]
Check it's working by running this command (you don't need to be root):
$ libguestfs-test-tool
This command will run some simple tests and eventually print out:
===== TEST FINISHED OK =====
If it doesn't print this out, or seems to fail for some other reason, please file a bug including the complete, unedited output.
Now check how fast the appliance gets created:
$ time guestfish -a /dev/null run
Run this a few times so the cache is "hot". Note that the first time you run it, it creates a cached appliance (in /var/tmp/.guestfs-*) so that is much slower. As a typical guide, you should see times like:
- 3-6 seconds, on modern hardware with virtualization extensions and KVM enabled
- 30-60 seconds, in a VM
If you get times wildly outside these ranges, let us know. Unless you're using an AMD Geode, in which case sorry.
Tests[edit]
There is a good set of tests upstream, and rather than just copying them here, follow the link: http://libguestfs.org/guestfs-testing.1.html
Bugs[edit]
If you find bugs, please file them using this link: https://bugzilla.redhat.com/enter_bug.cgi?component=libguestfs&product=Virtualization+Tools
IRC and mailing list[edit]
During the test day (2012-04-12) we will be on the #fedora-test-day IRC channel. The rest of the time, find us on #libguestfs (on FreeNode). There is also a mailing list.