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Re: [Xen-users] VM keeps rebooting when building via pxe

To: "Pinto, Melzer" <Melzer.Pinto@xxxxxxx>
Subject: Re: [Xen-users] VM keeps rebooting when building via pxe
From: Melody Bliss <melodybliss@xxxxxxxxx>
Date: Wed, 2 Feb 2011 14:32:40 -0800
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Hrm. Unfortunately, I don't. In both of these cases, it's using pxe to
boot your VM, which will cause it to reinstall.

What you want is it to use a bootloaded to do so. But it sounds like
pygrub isn't working here for you. Hopefully someone else on the list
can get you further. Sorry :(

Mel

On Wed, Feb 2, 2011 at 6:21 AM, Pinto, Melzer <Melzer.Pinto@xxxxxxx> wrote:
> Hi Melody,
> Thanks for your response.
> I tried this again today and here is what I see. I am using Oracle VM manager 
> to create the pxe configuration files. When I create the pxe configuration 
> file, the following 2 files get created
>
> diff -y vm.cfg vm.cfg.orig
> bootargs = 'bridge=xenbr0,mac=00:16:3E:35:C7:95,type=netfront | bootargs = 
> 'bridge=xenbr0'
> bootloader = '/usr/bin/pypxeboot'                               bootloader = 
> '/usr/bin/pypxeboot'
> disk = ['file:/var/ovs/mount/ADB5300DA0664B9C8CBDBAC34BFFC5A1   disk = 
> ['file:/var/ovs/mount/ADB5300DA0664B9C8CBDBAC34BFFC5A1
> memory = 2048                                                   memory = 2048
> name = '66_oraclevm3'                                         | name = 
> 'PXE_pvm'
> on_crash = 'restart'                                            on_crash = 
> 'restart'
> on_reboot = 'restart'                                           on_reboot = 
> 'restart'
> uuid = 'da985745-54ec-4387-8d3e-e80f2242b698'                 <
> vcpus = 2                                                       vcpus = 2
> vfb = ['type=vnc,vncunused=1,vnclisten=0.0.0.0,vncpasswd=ovsr   vfb = 
> ['type=vnc,vncunused=1,vnclisten=0.0.0.0,vncpasswd=ovsr
> vif = ['bridge=xenbr0,mac=00:16:3E:35:C7:95,type=netfront']     vif = 
> ['bridge=xenbr0,mac=00:16:3E:35:C7:95,type=netfront']
> vif_other_config = []                                           
> vif_other_config = []
>
> I edit the vm.cfg.orig file with the suggestion you made
> on_crash="destroy"
> on_reboot="destroy"
>
> I then run a xm create on the vm.cfg file and it starts to pxe  and builds. 
> When the build is completed it goes back to rebuilding the host again. I then 
> edited the pypxeboot line to pygrub in vm.cfg but now it returns with a 
> "Error: Boot loader didn't return any data!" error
>
> Any thoughts on this and what needs to be changed in these steps?
>
> Thanks
> Melzer
>
>
> -----Original Message-----
> From: Melody Bliss [mailto:melodybliss@xxxxxxxxx]
> Sent: Monday, January 31, 2011 5:10 PM
> To: Pinto, Melzer
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] VM keeps rebooting when building via pxe
>
> You want
> on_crash="destroy"
> on_reboot="destroy"
>
> instead of restart. Then, upon reboot, it will destroy the current VM.
> You'd then used a running config that uses pygrub as your bootloaded
> instead. This config would have
>
> on_reboot="restart"
> on_crash="restart"
>
> Mel
>
>
> On Mon, Jan 31, 2011 at 1:35 PM, Pinto, Melzer <Melzer.Pinto@xxxxxxx> wrote:
>> Hi,
>>
>> I am trying to build a Xen VM(THEL 5.3 and OEL 5.5) via pxe boot. I'm able
>> to get the dhcp and tftp servers to respond to the pxe request and the VM
>> starts building. However when it reboots it goes back to building again
>> instead of booting up. Has anyone seen this kind of behavior before? I tried
>> both RHEL and OEL. I think the problem might be bootloader pypxeboot line
>> but I'm not sure. Here is the vm.cfg
>>
>>
>>
>> bootargs = 'bridge=xenbr0,mac=00:16:3E:35:C7:95,type=netfront'
>>
>> bootloader = '/usr/bin/pypxeboot'
>>
>> disk =
>> ['file:/var/ovs/mount/ADB5300DA0664B9C8CBDBAC34BFFC5A1/running_pool/52_vm4/System.img,xvda,w']
>>
>> memory = 2048
>>
>> name = '52_vm4'
>>
>> on_crash = 'restart'
>>
>> on_reboot = 'restart'
>>
>> uuid = '25fd9fa0-e383-4e11-98d8-1921d787547a'
>>
>> vcpus = 2
>>
>> vfb = ['type=vnc,vncunused=1,vnclisten=0.0.0.0,vncpasswd=xxxxxx']
>>
>> vif = ['bridge=xenbr0,mac=00:16:3E:35:C7:95,type=netfront']
>>
>> vif_other_config = []
>>
>>
>>
>> Thanks
>>
>> Melzer Pinto
>>
>>
>>
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>
>
>
> --
> Melody Bliss
> Usenix, SAGE and LOPSA Charter Member
> Patron Member of the NRA
>
> IMPORTANT: The information contained in this email and/or its attachments is 
> confidential. If you are not the intended recipient, please notify the sender 
> immediately by reply and immediately delete this message and all its 
> attachments. Any review, use, reproduction, disclosure or dissemination of 
> this message or any attachment by an unintended recipient is strictly 
> prohibited. Neither this message nor any attachment is intended as or should 
> be construed as an offer, solicitation or recommendation to buy or sell any 
> security or other financial instrument. Neither the sender, his or her 
> employer nor any of their respective affiliates makes any warranties as to 
> the completeness or accuracy of any of the information contained herein or 
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>



-- 
Melody Bliss
Usenix, SAGE and LOPSA Charter Member
Patron Member of the NRA

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