[Xen-users] Problem to start PV VM

[Marcos Amorim <marcosmamorim@xxxxxxxxx>]

Hi, 

I'm having a strange problem to start a virtual machine PV and would like to know if anyone has experienced this or if it's a BUG.

I have Xen 4.1.4, kernel 2.6.32-xen and CentOS 6.4 64bits, the configuration of my virtual machine like this:

VM.xml

<domain type='xen'>

  <name>vm-1</name>

  <memory>8097152</memory>

  <vcpu>4</vcpu>

  <os>

    <type arch='x86_64' machine='xenpv'>linux</type>

  </os>

  <features>

    <acpi/>

    <apic/>

    <pae/>

  </features>

  <clock offset='utc'>

    <timer name='hpet' present='no'/>

  </clock>

  <on_poweroff>destroy</on_poweroff>

  <on_reboot>restart</on_reboot>

  <on_crash>restart</on_crash>

  <devices>

    <disk type='file' device='disk'>

      <driver name='tap2' type='vhd' /> 

      <source file='/local/disk/vm-1.vhd' />

      <target dev='xvda' bus='xen' />

    </disk>

    <interface type='bridge'>

      <mac address='00:16:3e:19:25:fa'/>

      <source bridge='virtbr12'/>

      <script path='/etc/xen/scripts/vif-test'/>

      <target dev='tec002.0'/>

    </interface>

    <interface type='bridge'>

      <mac address='ce:65:82:e3:ec:7d'/>

      <source bridge='virtbr4'/>

      <script path='/etc/xen/scripts/vif-test'/>

      <target dev='tec004.0'/>

    </interface>

    <graphics type='vnc' autoport='yes'/>

  </devices>

</domain>

Sometimes I get this error message:

error: POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: Disk isn't accessible")

Searching in the internet, I found this link, http://comments.gmane.org/gmane.os.solaris.opensolaris.xen/5105, took the test and it worked, but when you restart the virtual machine, not started, and went back to have problems with "Error creating domain: Disk isn't accessible"

Checked that this virtual machine disk mapped to the dom0.

# virsh dumpxml 0 

<domain type='xen' id='0'>

  <name>Domain-0</name>

  <uuid>00000000-0000-0000-0000-000000000000</uuid>

  <memory>4194304</memory>

  <currentMemory>3702784</currentMemory>

  <vcpu cpuset='0-3'>4</vcpu>

  <bootloader></bootloader>

  <os>

    <type>linux</type>

  </os>

  <clock offset='utc'/>

  <on_poweroff>destroy</on_poweroff>

  <on_reboot>restart</on_reboot>

  <on_crash>restart</on_crash>

  <devices>

    <disk type='file' device='disk'>

      <driver name='tap2' type='vhd'/>

      <source file='/local/disk/vm-1.vhd'/>

      <target dev='/dev/xvdp' bus='ide'/>

      <readonly/>

    </disk>

    <disk type='file' device='disk'>

      <driver name='tap2' type='vhd'/>

      <source file='/root/vm-1/vm-1.vhd'/>

      <target dev='/dev/xvdp' bus='ide'/>

      <readonly/>

    </disk>

  </devices>

</domain>

How can I remove this mapping  to dom0?

How to fix this problem?

Regards,

Marcos Amorim

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users