FWN/Beats/Virtualization

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{{Anchor|Virtualization}}
 
{{Anchor|Virtualization}}
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== Virtualization ==
 
== Virtualization ==
 
In this section, we cover discussion of Fedora virtualization technologies on the
 
In this section, we cover discussion of Fedora virtualization technologies on the
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@fedora-virt, @fedora-xen-list, and @libvirt-list lists.
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@fedora-virt, @fedora-xen-list, @libguestfs, @libvirt-list,
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@virt-tools-list, and @ovirt-devel-list lists.
  
 
Contributing Writer: [[User:Dale | Dale Bewley]]
 
Contributing Writer: [[User:Dale | Dale Bewley]]
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[http://www.redhat.com/mailman/listinfo/fedora-virt fedora-virt list].
 
[http://www.redhat.com/mailman/listinfo/fedora-virt fedora-virt list].
  
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==== Guest Bridge Configuration with libvirt and netcf ====
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==== Fedora Virtualization Status ====
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[[AndrésGarcía|Andrés García]]
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[[MarkMcLoughlin|Mark McLoughlin]]
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thought<ref>http://www.redhat.com/archives/fedora-virt/2009-November/msg00002.html</ref> he read somewhere that "with [[Releases/12|Fedora 12]] there was going to be a way to configure virtual network bridges automagically," but was only aware of the manual<ref>http://wiki.libvirt.org/page/Networking#Bridged_networking_.28aka_.22shared_physical_device.22.29</ref> means of configuration.
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<ref>http://www.redhat.com/archives/fedora-virt/2009-November/msg00045.html</ref>
  
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It is possible in to configure bridges using {{command|virsh}} thanks to the Network Interface Management<ref>http://fedoraproject.org/wiki/Features/Network_Interface_Management</ref> feature and {{package|netcf}}<ref>http://linux-kvm.com/content/netcf-silver-bullet-network-configuration</ref>. However, the process is manual and not in the GUI. [[DaleBewley|Dale Bewley]] blogged<ref>http://tofu.org/drupal/node/86</ref> about how to manually create a bridge in Fedora 12 using {{command|virsh}}.
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<references />
  
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Support for {{package|virt-manager}} integration is targeted<ref>http://fedoraproject.org/wiki/Features/Shared_Network_Interface</ref> for Fedora 13.
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==== Rawvirt Rawhide Virtualization for Fedora 12 ====
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[[JustinForbes|Justin Forbes]]
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announced<ref>http://www.redhat.com/archives/fedora-virt/2009-November/msg00041.html</ref>
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"As was done for Fedora 11 users, the tradition continues, only the
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locations have changed.
  
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<references />
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We've set up a repository for people running Fedora 12 who would like
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to test the rawhide/F13 virt packages. To use it, do e.g."
  
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==== New Release libguestfs 1.0.78 ====
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<pre>
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[[RichardJones|Richard Jones]] announced<ref>http://www.redhat.com/archives/virt-tools-list/2009-November/msg00023.html</ref>
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  $> cat > /etc/yum.repos.d/fedora-virt-preview.repo << EOF
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version 1.0.78 of {{package|libguestfs}}<ref>http://libguestfs.org/</ref>, the library for accessing and modifying virtual machine filesystems.
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  [rawvirt]
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  name=Virtualization Rawhide for Fedora 12
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  baseurl=http://jforbes.fedorapeople.org/virt-preview/f12/$basearch/
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  enabled=1
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  gpgcheck=0
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  EOF
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  $> yum update
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</pre>
  
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'''New Features:'''
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The Virtualization Preview Repository<ref>http://fedoraproject.org/wiki/Virtualization_Preview_Repository</ref>
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* FUSE support so you can mount guest filesystems in the host <ref>http://rwmj.wordpress.com/2009/11/03/browsing-guests-using-fuse/</ref>
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is for people who would like to test the very latest virtualization related packages. This repository is intended primarily as an aid to testing / early experimentation. It is not intended for 'production' deployment.  
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* Support for btrfs, gfs, gfs2, hfs, hfs+, nilfs2, jfs, reiserfs, xfs<ref>http://rwmj.wordpress.com/2009/11/08/filesystem-metadata-overhead/</ref>
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* Support for huge (multi-exabyte) sparse virtual disks<ref>http://rwmj.wordpress.com/2009/11/04/petabytes-exabytes-why-not/</ref>
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* New partitioning API, supports GPT and more<ref>http://libguestfs.org/guestfs.3.html#guestfs_part_add</ref>
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* New tools:
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:* <code>virt-ls</code><ref>http://rwmj.wordpress.com/2009/10/19/new-tool-virt-ls/</ref>
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:* <code>virt-tar</code><ref>http://rwmj.wordpress.com/2009/10/19/new-tool-virt-tar/</ref>
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:* <code>virt-edit</code><ref>http://rwmj.wordpress.com/2009/09/23/virt-edit/</ref>
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:* <code>virt-rescue</code><ref>http://rwmj.wordpress.com/2009/09/22/virt-rescue/</ref>
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* Windows Registry support, tools and library<ref>http://rwmj.wordpress.com/2009/10/29/virt-win-reg-get-at-the-windows-registry-in-your-windows-guests/</ref> <ref>http://rwmj.wordpress.com/2009/10/28/libhivex-windows-registry-hive-extractor-library/</ref>
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* OCaml bindings for <code>virt-inspector</code>
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* RELAX NG schema for <code>virt-inspector</code>
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* New APIs: <code>utimens</code>, <code>vfs_type</code>, <code>truncate</code>, <code>truncate_size</code>, <code>lchown</code>, <code>lstatlist</code>, <code>lxattrlist</code>, <code>readlinklist</code>, <code>case_sensitive_path</code>, <code>find0</code>, <code>mkfs_b</code>, <code>mke2journal</code>, <code>and more ...
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* New program: OCaml viewer<ref>http://rwmj.wordpress.com/2009/09/29/graphical-virt-df/</ref>
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* Allow stdout to be redirected when running guestfish remotely (Matt Booth).
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* Remove requirement for vmchannel support in qemu (horray!) and the tricky main loop code.
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<references />
 
<references />
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[http://www.redhat.com/mailman/listinfo/fedora-xen fedora-xen list].
 
[http://www.redhat.com/mailman/listinfo/fedora-xen fedora-xen list].
  
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==== No Xen dom0 in Fedora 12 Hopefully 13 ====
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==== ====
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[[ZhangEnming|Zhang Enming]]
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<references />
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was disappointed<ref>http://www.redhat.com/archives/fedora-xen/2009-November/msg00019.html</ref> to learn<ref>http://fedoraproject.org/wiki/Docs/Beats/Virtualization</ref>  the pv_ops dom0 support<ref>http://fedoraproject.org/wiki/Features/XenPvopsDom0</ref> for hosting Xen guests, dropped in Fedora 9, is still not present in Fedora 12.
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Zhang referenced numerous videos documenting success in creating "a fully working Xen pv-ops dom0 Fedora 11 host operating system."
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While there are experimental patches which may be applied<ref>http://fedoraproject.org/wiki/FWN/Issue190#Dom0_Kernel_Status</ref> <ref>http://wiki.xensource.com/xenwiki/XenParavirtOps</ref> to the kernel to enable support for dom0, they are not yet in the upstream kernel which forms the basis the Fedora kernel package.  
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=== Virtualization Tools List ===
 +
This section contains the discussion happening on the
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[http://www.redhat.com/mailman/listinfo/virt-tools-list virt-tools-list list].
  
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It was decided<ref>http://www.redhat.com/archives/fedora-xen/2007-November/msg00106.html</ref> two years ago this month that
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====  ====
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Fedora "simply cannot spend more time forward porting Xen kernels" and
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<references />
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"the plan is to re-focus 100% of all Xen kernel efforts onto paravirt_ops."
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See FWN#137.<ref>http://fedoraproject.org/wiki/FWN/Issue137#kernel-xen_is_Dead</ref>
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[[PasiKärkkäinen|Pasi Kärkkäinen]]
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=== Libguestfs List ===
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noted<ref>http://www.redhat.com/archives/fedora-xen/2009-November/msg00020.html</ref>
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This section contains the discussion happening on the
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"pv_ops dom0 kernel has only recently started working for many/most
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[http://www.redhat.com/mailman/listinfo/libguestfs libguestfs list].
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people, so it was too late for F12 release" and
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"There are still some missing features, most notably missing blktap2 support
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for tap:aio: file-based images."
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 +
====  ====
 
<references />
 
<references />
  
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[http://www.redhat.com/mailman/listinfo/libvir-list libvir-list].
 
[http://www.redhat.com/mailman/listinfo/libvir-list libvir-list].
  
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==== Keeping Guest Configurations in Sync on Multiple Hosts ====
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==== ====
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[[ThomasTreutner|Thomas Treutner]]
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<references />
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asked<ref>http://www.redhat.com/archives/libvir-list/2009-November/msg00495.html</ref> "is there any best-practice how to keep VM definitions in sync across a couple of hosts? Is it reasonable to put {{filename|/etc/libvirt/qemu/}} on a NFS share?"
+
  
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[[MatthiasBolte|Matthias Bolte]]
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=== oVirt Devel List ===
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explained<ref>http://www.redhat.com/archives/libvir-list/2009-November/msg00498.html</ref> "No, it's not safe to share {{filename|/etc/libvirt/qemu/}}", but also didn't find it necessary to keep the configs in sync. 
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This section contains the discussion happening on the
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"A migrated domain stays defined on the source node and is transient on
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[http://www.redhat.com/mailman/listinfo/ovirt-devel ovirt-devel list].
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the destination node. A transient domain has no persistent config on
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its node and is lost when destroyed."
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−
 
+
−
Matthias mentioned a patch<ref>http://www.redhat.com/archives/libvir-list/2009-October/msg00318.html</ref> to the <code>virDomainMigrate</code><ref>http://www.libvirt.org/html/libvirt-libvirt.html#virDomainMigrate</ref> function by [[ChrisLalancette|Chris Lalancette]] which will be in {{package|libvirt}} 0.7.3.
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The patch adds a new flag which will allow domains to be migrated persistently. Version 0.7.3 is targeted<ref>http://www.redhat.com/archives/libvir-list/2009-November/msg00480.html</ref>
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−
for release on November 20th.
+
  
 +
====  ====
 
<references />
 
<references />

Revision as of 17:41, 22 November 2009



Contents

Virtualization

In this section, we cover discussion of Fedora virtualization technologies on the @fedora-virt, @fedora-xen-list, @libguestfs, @libvirt-list, @virt-tools-list, and @ovirt-devel-list lists.

Contributing Writer: Dale Bewley

Fedora Virtualization List

This section contains the discussion happening on the fedora-virt list.

Fedora Virtualization Status

Mark McLoughlin [1]

  1. ↑ http://www.redhat.com/archives/fedora-virt/2009-November/msg00045.html

Rawvirt Rawhide Virtualization for Fedora 12

Justin Forbes announced[1] "As was done for Fedora 11 users, the tradition continues, only the locations have changed.

We've set up a repository for people running Fedora 12 who would like to test the rawhide/F13 virt packages. To use it, do e.g." 

  $> cat > /etc/yum.repos.d/fedora-virt-preview.repo << EOF
  [rawvirt]
  name=Virtualization Rawhide for Fedora 12
  baseurl=http://jforbes.fedorapeople.org/virt-preview/f12/$basearch/
  enabled=1
  gpgcheck=0
  EOF
  $> yum update

The Virtualization Preview Repository[2] is for people who would like to test the very latest virtualization related packages. This repository is intended primarily as an aid to testing / early experimentation. It is not intended for 'production' deployment.

  1. ↑ http://www.redhat.com/archives/fedora-virt/2009-November/msg00041.html
  2. ↑ http://fedoraproject.org/wiki/Virtualization_Preview_Repository

Fedora Xen List

This section contains the discussion happening on the fedora-xen list.


Virtualization Tools List

This section contains the discussion happening on the virt-tools-list list.


Libguestfs List

This section contains the discussion happening on the libguestfs list.


Libvirt List

This section contains the discussion happening on the libvir-list.


oVirt Devel List

This section contains the discussion happening on the ovirt-devel list.

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