[libvirt-users] Adding a channel device within an Openstack Fedora Instance ..

[Jean-Pierre Ribeauville]

Hi,

I'm trying to add a channel on a Openstack instance via this command :

# virsh attach-device instance-00000005 test.xml

   that returns this error


error: Failed to attach device from test.xml
error: internal error: no virtio-serial controllers are available
#

  # cat test.xml :

<channel type='unix'>
      <source mode='bind' path='//var/lib/libvirt/qemu/instance-00000005.agent'/>
      <target type='virtio' name='instance-00000005.agent'/>
</channel>


#virsh dumpxml instance-00000005

<domain type='kvm' id='8'>
  <name>instance-00000005</name>
  <uuid>f85ea8a4-0159-417c-bef5-5b4e908ea2a0</uuid>
  <metadata>
    <nova:instance xmlns:nova="http://openstack.org/xmlns/libvirt/nova/1.0">
      <nova:package version="12.0.1-1.el7"/>
      <nova:name>Fedora-Cloud-23-2015-1</nova:name>
      <nova:creationTime>2016-06-06 08:22:34</nova:creationTime>
      <nova:flavor name="m1.small">
        <nova:memory>2048</nova:memory>
        <nova:disk>20</nova:disk>
        <nova:swap>0</nova:swap>
        <nova:ephemeral>0</nova:ephemeral>
        <nova:vcpus>1</nova:vcpus>
      </nova:flavor>
      <nova:owner>
        <nova:user uuid="da49c3189eaf40b28893b422b60cc73e">demo</nova:user>
        <nova:project uuid="ef3ecf8618e24130b2cd8adab8e17310">demo</nova:project>
      </nova:owner>
      <nova:root type="image" uuid="a22e881e-dd17-4795-a118-67f9ec90a768"/>
    </nova:instance>
  </metadata>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1024</shares>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <sysinfo type='smbios'>
    <system>
      <entry name='manufacturer'>Fedora Project</entry>
      <entry name='product'>OpenStack Nova</entry>
      <entry name='version'>12.0.1-1.el7</entry>
      <entry name='serial'>8cd9a34f-a760-4c53-9420-a3a22a484bb2</entry>
      <entry name='uuid'>f85ea8a4-0159-417c-bef5-5b4e908ea2a0</entry>
      <entry name='family'>Virtual Machine</entry>
    </system>
  </sysinfo>
  <os>
    <type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
    <boot dev='hd'/>
    <smbios mode='sysinfo'/>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-model'>
    <model fallback='allow'/>
    <topology sockets='1' cores='1' threads='1'/>
  </cpu>
  <clock offset='utc'>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='none'/>
      <source file='/var/lib/nova/instances/f85ea8a4-0159-417c-bef5-5b4e908ea2a0/disk'/>
      <backingStore type='file' index='1'>
        <format type='raw'/>
        <source file='/var/lib/nova/instances/_base/5773dfb9c65f9640334bf9b3101ac8a2f485ee83'/>
        <backingStore/>
      </backingStore>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <interface type='bridge'>
      <mac address='fa:16:3e:ad:2d:51'/>
      <source bridge='qbr9ece405a-26'/>
      <target dev='tap9ece405a-26'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='file'>
      <source path='/var/lib/nova/instances/f85ea8a4-0159-417c-bef5-5b4e908ea2a0/console.log'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <serial type='pty'>
      <source path='/dev/pts/4'/>
      <target port='1'/>
      <alias name='serial1'/>
    </serial>
    <console type='file'>
      <source path='/var/lib/nova/instances/f85ea8a4-0159-417c-bef5-5b4e908ea2a0/console.log'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='tablet' bus='usb'>
      <alias name='input0'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='5901' autoport='yes' listen='0.0.0.0' keymap='en-us'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <video>
      <model type='cirrus' vram='16384' heads='1'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <stats period='10'/>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='selinux' relabel='yes'>
    <label>system_u:system_r:svirt_t:s0:c699,c952</label>
    <imagelabel>system_u:object_r:svirt_image_t:s0:c699,c952</imagelabel>
  </seclabel>
</domain>


How may I add this controller ( before adding the channel device) ?

Thanks for help.

Regards,

Jean-Pierre RIBEAUVILLE

+33 1 4717 2049

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