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Re: [Xen-API] VM.start_on returns VM_HVM_REQUIRED



lol - thanks, will give it a try this evening...

On Fri, Apr 4, 2014 at 2:32 PM, Rob Hoes <Rob.Hoes@xxxxxxxxxx> wrote:
> That may work indeed (if you'd spell "pygrub" correctly :) ).
>
> Cheers,
> Rob
>
> On 4 Apr 2014, at 14:19, chris snow <chsnow123@xxxxxxxxx> wrote:
>
>> Hi Rob,
>>
>> Thanks for the info!!
>>
>> The installation ISO is Ubuntu 12.04.4 [1] - which I believe has a 3.2
>> linux kenel, so should be PVOPS enabled?
>>
>> I'm not sure I'll be able to use 'xe vm-param-set' because Cloudstack
>> detects the failure to start the instance and seems to delete it.
>> Instead of vm-param-set, I should be able to reach the same goal if I
>> try to alter the VM.create XMLRPC commands sent from Cloudstack?
>>
>> From:
>>                    ...
>>                   <member>
>>                        <name>HVM_boot_policy</name>
>>                        <value>BIOS order</value>
>>                    </member>
>>                    ...
>>                    <member>
>>                        <name>HVM_boot_params</name>
>>                        <value>
>>                            <struct>
>>                                <member>
>>                                    <name>order</name>
>>                                    <value>dc</value>
>>                                </member>
>>                            </struct>
>>                        </value>
>>                    </member>
>>                    ...
>>                    <member>
>>                        <name>PV_bootloader</name>
>>                        <value></value>
>>                    </member>
>>                    ...
>> To
>>
>>                    <member>
>>                        <name>HVM_boot_policy</name>
>>                        <value></value>
>>                    </member>
>>                    ...
>>                    <member>
>>                        <name>HVM_boot_params</name>
>>                        <value></value>
>>                    </member>
>>                    ...
>>                    <member>
>>                        <name>PV_bootloader</name>
>>                        <value>pgrub</value>
>>                    </member>
>>
>> Many thanks,
>>
>> Chris
>>
>> ---
>> [1] http://releases.ubuntu.com/12.04/ubuntu-12.04.4-server-i386.iso
>>
>> On Fri, Apr 4, 2014 at 1:42 PM, Rob Hoes <Rob.Hoes@xxxxxxxxxx> wrote:
>>> Hello Chris,
>>>
>>> If you have created your VM from the "Other install media" template, then
>>> XenServer will boot it as an HVM guest.
>>>
>>> This is governed by the following parameters on your VM:
>>>
>>>              HVM-boot-policy ( RW): BIOS order
>>>              HVM-boot-params (MRW): order: dc
>>>        HVM-shadow-multiplier ( RW): 1.000
>>>                    PV-kernel ( RW):
>>>                   PV-ramdisk ( RW):
>>>                      PV-args ( RW):
>>>               PV-legacy-args ( RW):
>>>                PV-bootloader ( RW):
>>>           PV-bootloader-args ( RW):
>>>
>>> Try using 'xe vm-param-set' to clear the HVM-boot-policy and HVM-boot-params
>>> keys, and set PV-bootloader to "pygrub".
>>>
>>> Now, this would only work if the kernel of your guest is a PVOPS one (3.x),
>>> or specially compiled for Xen, which may not be the case.
>>>
>>> Cheers,
>>> Rob
>>>
>>> On 4 Apr 2014, at 01:14, chris snow <chsnow123@xxxxxxxxx> wrote:
>>>
>>> The guest vm is non-hvm and the host is non-hvm, so viridian=true should be
>>> OK?  Also, other guest vms are running fine with viridian=true.
>>>
>>> Many thanks,
>>>
>>> Chris
>>>
>>> On 4 Apr 2014 00:55, "David Bomba" <turbo124@xxxxxxxxx> wrote:
>>>>
>>>> Ok, so from my understanding, you can't run a HVM guest with VIRIDIAN set
>>>> to true.
>>>>
>>>> Can you use the xe vm-param-set functionality to switch Viridian to false
>>>> and try again.
>>>>
>>>>
>>>>
>>>>
>>>> On 4 April 2014 10:49, chris snow <chsnow123@xxxxxxxxx> wrote:
>>>>>
>>>>> Hi David,
>>>>>
>>>>> xe vm-param-list output:
>>>>>
>>>>>                    name-label ( RW): i-2-19-VM
>>>>>              name-description ( RW): Template which allows VM
>>>>> installation from install media
>>>>>                  user-version ( RW): 1
>>>>>                 is-a-template ( RW): false
>>>>>                 is-a-snapshot ( RO): false
>>>>>                   snapshot-of ( RO): <not in database>
>>>>>                     snapshots ( RO):
>>>>>                 snapshot-time ( RO): 19700101T00:00:00Z
>>>>>                 snapshot-info ( RO):
>>>>>                        parent ( RO): <not in database>
>>>>>                      children ( RO):
>>>>>             is-control-domain ( RO): false
>>>>>                   power-state ( RO): halted
>>>>>                 memory-actual ( RO): 0
>>>>>                 memory-target ( RO): 0
>>>>>               memory-overhead ( RO): 4194304
>>>>>             memory-static-max ( RW): 104857600
>>>>>            memory-dynamic-max ( RW): 104857600
>>>>>            memory-dynamic-min ( RW): 104857600
>>>>>             memory-static-min ( RW): 104857600
>>>>>              suspend-VDI-uuid ( RW): <not in database>
>>>>>               suspend-SR-uuid ( RW): <not in database>
>>>>>                  VCPUs-params (MRW): weight: 9; cap: 0
>>>>>                     VCPUs-max ( RW): 1
>>>>>              VCPUs-at-startup ( RW): 1
>>>>>        actions-after-shutdown ( RW): Destroy
>>>>>          actions-after-reboot ( RW): Restart
>>>>>           actions-after-crash ( RW): Destroy
>>>>>                 console-uuids (SRO):
>>>>>                      platform (MRW): viridian: true; acpi: true;
>>>>> apic: true; pae: true; nx: false
>>>>>            allowed-operations (SRO): changing_dynamic_range;
>>>>> changing_shadow_memory; changing_static_range; make_into_template;
>>>>> destroy; export; start_on; start; clone; copy; snapshot
>>>>>            current-operations (SRO):
>>>>>            blocked-operations (MRW):
>>>>>           allowed-VBD-devices (SRO): 1; 2; 3
>>>>>           allowed-VIF-devices (SRO): 0; 1; 2; 3
>>>>>                possible-hosts ( RO):
>>>>>               HVM-boot-policy ( RW): BIOS order
>>>>>               HVM-boot-params (MRW): order: dc
>>>>>         HVM-shadow-multiplier ( RW): 1.000
>>>>>                     PV-kernel ( RW):
>>>>>                    PV-ramdisk ( RW):
>>>>>                       PV-args ( RW):
>>>>>                PV-legacy-args ( RW):
>>>>>                 PV-bootloader ( RW):
>>>>>            PV-bootloader-args ( RW):
>>>>>           last-boot-CPU-flags ( RO):
>>>>>              last-boot-record ( RO): ''
>>>>>                   resident-on ( RO): <not in database>
>>>>>                      affinity ( RW):
>>>>> c47d712e-8aa8-fcd6-113e-8546532e5fcc
>>>>>                  other-config (MRW): mac_seed:
>>>>> b2088266-d6fd-dfd2-4b5e-84c037d085d6; install-methods: cdrom
>>>>>                        dom-id ( RO): -1
>>>>>               recommendations ( RO): <restrictions><restriction
>>>>> field="memory-static-max" max="137438953472" /><restriction
>>>>> field="vcpus-max" max="16" /><restriction property="number-of-vbds"
>>>>> max="7" /><restriction property="number-of-vifs" max="7"
>>>>> /></restrictions>
>>>>>                 xenstore-data (MRW):
>>>>>    ha-always-run ( RW) [DEPRECATED]: false
>>>>>           ha-restart-priority ( RW):
>>>>>                         blobs ( RO):
>>>>>                    start-time ( RO): 19700101T00:00:00Z
>>>>>                  install-time ( RO): 19700101T00:00:00Z
>>>>>                  VCPUs-number ( RO): 0
>>>>>             VCPUs-utilisation (MRO):
>>>>>                    os-version (MRO): <not in database>
>>>>>            PV-drivers-version (MRO): <not in database>
>>>>>         PV-drivers-up-to-date ( RO): <not in database>
>>>>>                        memory (MRO): <not in database>
>>>>>                         disks (MRO): <not in database>
>>>>>                      networks (MRO): <not in database>
>>>>>                         other (MRO): <not in database>
>>>>>                          live ( RO): <not in database>
>>>>>    guest-metrics-last-updated ( RO): <not in database>
>>>>>                   cooperative ( RO): true
>>>>>             protection-policy ( RW): <not in database>
>>>>>         is-snapshot-from-vmpp ( RO): false
>>>>>                          tags (SRW):
>>>>>                     appliance ( RW): <not in database>
>>>>>                   start-delay ( RW): 0
>>>>>                shutdown-delay ( RW): 0
>>>>>                         order ( RW): 0
>>>>>                       version ( RO): 0
>>>>>
>>>>> On Fri, Apr 4, 2014 at 12:31 AM, David Bomba <turbo124@xxxxxxxxx> wrote:
>>>>>> Hi Chris,
>>>>>>
>>>>>> are you able to go to the cli and retrieve the param-list for this VM?
>>>>>> i
>>>>>> think this may be due to VIRIDIAN flag being set to true.
>>>>>>
>>>>>> xe vm-param-list uuid=<uuid of vm>
>>>>>>
>>>>>>
>>>>>> On 4 April 2014 10:21, chris snow <chsnow123@xxxxxxxxx> wrote:
>>>>>>>
>>>>>>> I have debian wheezy running xen host inside a virtualbox guest, so
>>>>>>> the xen host doesn't have HVM.
>>>>>>>
>>>>>>> I am using a third party application (cloudstack) communicating with
>>>>>>> xen using xapi.   I'm trying to create a VM using Ubuntu 12.04
>>>>>>> installation ISO [1], but have set the OS type to 'Other (32 bit) so
>>>>>>> that xen would not use HVM, but I receive the error VM_HVM_REQUIRED.
>>>>>>>
>>>>>>> I have captured the VM.create request here:
>>>>>>> https://gist.github.com/snowch/9957480 and also the VM.start_on
>>>>>>> response here: https://gist.github.com/snowch/9957480
>>>>>>>
>>>>>>> I had originally posted this question to the cloudstack mailing list,
>>>>>>> but I now think the question is more relevant to this list because it
>>>>>>> is actually a question about the xen api.
>>>>>>>
>>>>>>> Question 1:
>>>>>>>
>>>>>>> Is my understanding correct that I should be able to create a VM on a
>>>>>>> non HVM Xen host using the Ubuntu install ISO?
>>>>>>>
>>>>>>> Question 2:
>>>>>>>
>>>>>>> If the answer to Q1 is 'yes', is there anything that stands out in the
>>>>>>> VM.start request that is telling Xen that the vm must have HVM support
>>>>>>> which is then telling xen to fail the request?   It seems that
>>>>>>> somewhere in the xapi call stack for VM.start_on, the method
>>>>>>> VM.get_HVM_boot_policy is getting called and returning that hvm is
>>>>>>> required.
>>>>>>>
>>>>>>> Many thanks!
>>>>>>>
>>>>>>> Chris
>>>>>>>
>>>>>>> ---
>>>>>>> [1] http://releases.ubuntu.com/12.04/ubuntu-12.04.4-server-i386.iso
>>>>>>> [2]
>>>>>>>
>>>>>>> https://github.com/xapi-project/xen-api/blob/master/ocaml/xapi/xapi_vm_helpers.ml#L488
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Xen-api mailing list
>>>>>>> Xen-api@xxxxxxxxxxxxx
>>>>>>> http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Check out my professional profile and connect with me on LinkedIn.
>>>>> http://lnkd.in/cw5k69
>>>>>
>>>>> _______________________________________________
>>>>> Xen-api mailing list
>>>>> Xen-api@xxxxxxxxxxxxx
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>>>>
>>>>
>>> _______________________________________________
>>> Xen-api mailing list
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>>>
>>>
>>
>>
>>
>> --
>> Check out my professional profile and connect with me on LinkedIn.
>> http://lnkd.in/cw5k69
>



-- 
Check out my professional profile and connect with me on LinkedIn.
http://lnkd.in/cw5k69

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