Difference between revisions of "Talk:Libvirt"

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(Workaround to have KVM truly accelerating after qemu-kvm removal)
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--[[User:En0|En0]] ([[User talk:En0|talk]]) 04:50, 31 January 2013 (UTC)
 
--[[User:En0|En0]] ([[User talk:En0|talk]]) 04:50, 31 January 2013 (UTC)
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In order to have KVM accelaration after the removal of [[KVM|qemu-kvm]] I had to edit the config of my virtual machines like this:
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<pre><nowiki>
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<domain type='qemu' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
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...
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  <qemu:commandline>
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    <qemu:arg value='-machine'/>
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    <qemu:arg value='accel=kvm'/>
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  </qemu:commandline>
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</domain>
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</nowiki></pre>
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I don't know if there is some specific field in libvirt XML, but this works for me.
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--[[User:Vimes656|Vimes656]] ([[User talk:Vimes656|talk]]) 13:16, 7 March 2013 (UTC)Vimes656

Revision as of 13:16, 7 March 2013

What is the reasoning behind disabling xen integration? I'm tempted to open a bug for the missing xen integration, but I assume there is a reason it is excluded. TripleSpeeder (talk) 14:43, 27 November 2012 (UTC)


libvirt-guests does not work with systemd. At least not without modification to the scripts. To enable a guest to auto-start you can either check the "autostart" box in virt-manager, enable autostart through virsh or you can manually create a symlink in the libvirt auto-start directory.

To automatically start a guest named www that runs in qemu

ln -s /etc/libvirt/qemu/www.xml /etc/libvirt/qemu/autostart/www.xml

--En0 (talk) 14:35, 10 December 2012 (UTC)


virt-manager-0.9.4-4 python scripts don't seem to be working. I have been testing them all day.. Including but not limited to a full clean reinstall of Arch 4 times.. I have been getting the error: Building default storage pool failed error. So as a work around I used is below.. This is after the directories are created and root has access to them.


# virsh
# pool-destroy default
# pool-undefine default
# pool-define-as --name default --type dir --target /path/to/default/directory 
# pool-autostart default
# pool-build default
# pool-start default
# pool-destroy local
# pool-undefine local
# pool-define-as --name local-iso --type dir --target /path/to/default/local-iso/directory
# pool-autostart local-iso
# pool-build local-iso
# pool-start local-iso
# quit

$ virt-manager

--Rxdarkdawg10 (talk) 21:17, 30 January 2013 (MST)


Last version broke for me. It was a permissions issue that i solved by creating a service account. I am running v1.0.2-1 with qemu.

Create service account for qemu:

# useradd -g kvm -M -N -r qemu

Edit to run under creds: /etc/libvirt/qemu.conf

user='qemu'
group='kvm'

Also you will need to modify the permissions to the /dev/kvm

# chown root:kvm /dev/kvm

--En0 (talk) 04:50, 31 January 2013 (UTC)


In order to have KVM accelaration after the removal of qemu-kvm I had to edit the config of my virtual machines like this:

<domain type='qemu' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
...
  <qemu:commandline>
    <qemu:arg value='-machine'/>
    <qemu:arg value='accel=kvm'/>
  </qemu:commandline>
</domain>

I don't know if there is some specific field in libvirt XML, but this works for me.

--Vimes656 (talk) 13:16, 7 March 2013 (UTC)Vimes656