Re: [Xen-users] migrate virtual machine to another server

Joseph Glanville
Sat, 14 May 2011 13:04:45 -0000

Hi,

What errors are printed to screen on xm/xl create?

Also post relevant portions of xm log. I can''t seem to think of why
your domain wouldn''t start.

Joseph.

On 14 May 2011 23:00, Asistar srl Ivan Bolognani <bolognani@asistar.it>
wrote:
> the path is correct
>
>  on server 2 is already running multiple virtual machines with Xen.
vwindows
> is that Linux
> Every machine in the server 2 are all working.
> The drivers qemu is installed
>
>
>
> Il 14/05/11 14:37, "Joseph Glanville"
<joseph.glanville@orionvm.com.au> ha
> scritto:
>
>> Hi,
>>
>> Ensure this path is correct:
>>  ''phy:/dev/europe_storage/bill-wdisk,hda,w'',
>> Also if you aren''t using the QEMU ioemu driver make sure you
have
>> PVonHVM drivers installed or GPLPV if this is a Windows guest.
>> Is there any error output when you try to start the domain?
>>
>> Joseph.
>>
>> On 14 May 2011 22:30, Asistar srl Ivan Bolognani
<bolognani@asistar.it> wrote:
>>> My config file is:
>>>
>>> ******************
>>> kernel         = ''hvmloader''
>>> builder        = ''hvm''
>>> memory         = 512
>>> shadow_memory  = 8
>>> name           = "bill"
>>> device_model   = ''qemu-dm''
>>> boot           = ''dc''
>>> sdl            = 0
>>> vnc            = 1
>>> stdvga         = 0
>>> vnclisten      = ''192.168.0.181''
>>> # vfb            = [
>>> #                    ''type=vnc,''
>>> #                  ''vncdisplay=1,''
>>> #                  ''vncpasswd=foo''
>>> #                  ]
>>> # http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=585
>>> usbdevice      = "tablet"
>>> # serial         = ''pty''
>>>
>>> disk    = [
>>>
 ''phy:/dev/europe_storage/bill-wdisk,hda,w'',
>>>          ]
>>> vif         = [
>>>                (
>>>                  ''type=ioemu,''
>>>                  ''ip=10.0.1.42,''
>>>                  ''bridge=eth1,''
>>>                  ''script=vif-bridge,''
>>>                  ''vifname=bill.0,''
>>>                  ''mac=00:16:3f:d5:f4:31''
>>>
>>>                )
>>>              ]
>>> on_poweroff = ''destroy''
>>> on_reboot   = ''restart''
>>> on_crash    = ''destroy''
>>> ****************
>>>
>>>
>>>
>>>
>>>
>>> Il 14/05/11 14:25, "Joseph Glanville"
<joseph.glanville@orionvm.com.au> ha
>>> scritto:
>>>
>>>> Hi,
>>>>
>>>> Can you post the config file?
>>>>
>>>> Joseph.
>>>>
>>>> On 14 May 2011 21:59, Asistar srl Ivan Bolognani
<bolognani@asistar.it>
>>>> wrote:
>>>>> Good morning
>>>>>
>>>>> I followed the instructions,
>>>>> I moved the image with command dd,
>>>>> I moved on server 2 file.cfg  and after on server 2 I typed
xm create
>>>>> file.cfg
>>>>>
>>>>> but will not start anything
>>>>>
>>>>> I must moved from server 1 to server 2  1 virtual machine
wit windows 2003
>>>>> and 2 virtual machine with debian
>>>>>
>>>>>
>>>>>
>>>>> Il 13/05/11 17:55, "Joseph Glanville"
<joseph.glanville@orionvm.com.au> ha
>>>>> scritto:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> If the devices are in /dev/mapper you are probably
using LVM.
>>>>>> You can use these commands to move the disks to server2
substituting
>>>>>> in the names of the LVM logical volume names.
>>>>>>
>>>>>> # copy the LV to an image file
>>>>>> dd if=/dev/mapper/<vgname>-<lvname>
of=/tmp/<vmname>.img bs=1M
>>>>>>
>>>>>> #transfer the image file
>>>>>> scp <user>@server2:/tmp/<vmname>.img
>>>>>>
>>>>>> #create a new LV assuming the volume group is already
setup
>>>>>> lvcreate -n<lvname> -L<sizeofdisk>
<vgname>
>>>>>>
>>>>>> #copy the image onto the newly created lv
>>>>>> dd if=/tmp/<vmname>.img
of=/dev/mapper/<vgname>-<lvname>
>>>>>>
>>>>>> You should now be able to start the VM with the same
configuration
>>>>>> file assuming networking etc is setup the same as
server1.
>>>>>>
>>>>>> Joseph.
>>>>>>
>>>>>>
>>>>>> On 14 May 2011 01:38, Ivan Bolognani
<bolognani@asistar.it> wrote:
>>>>>>> Good morning.
>>>>>>>
>>>>>>> I have a question can you help me?
>>>>>>>
>>>>>>> I must migrate a virtual machine from server1  to
server2 but I do not
>>>>>>> know
>>>>>>> where to start
>>>>>>>
>>>>>>> files are all in / dev / mapper / but I do not
understand how to move
>>>>>>>
>>>>>>> Can you help me posting the procedure  to do to
migrate the virtual
>>>>>>> server
>>>>>>>
>>>>>>> Sorry for my english
>>>>>>> Thanks
>>>>>>> Ivan
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Xen-users mailing list
>>>>>>> Xen-users@lists.xensource.com
>>>>>>> http://lists.xensource.com/xen-users
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Xen-users mailing list
>>>>> Xen-users@lists.xensource.com
>>>>> http://lists.xensource.com/xen-users
>>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Xen-users mailing list
>>> Xen-users@lists.xensource.com
>>> http://lists.xensource.com/xen-users
>>>
>>
>>
>
>
>
>
>
>
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--
Kind regards,
Joseph.
Founder | Director
Orion Virtualisation Solutions | www.orionvm.com.au | Phone: 1300 56
99 52 | Mobile: 0428 754 846