boot=on option fails on win 2k/xp double boot

boot=on option fails on win 2k/xp double boot

[Federico Fissore]

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I've a windows (virtual) box with windows xp originally installed and a 
windows 2k lately installed

If I run kvm from the command line for testing purposes everything is 
fine. If I run it with libvirt on the host, I does not boot, complaining 
with an I/O error

the problem arises since libvirt adds boot=on on the first disk

without that option, everything works fine

do you have any hint on this?

thanks

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Re: boot=on option fails on win 2k/xp double boot

[Gleb Natapov]

On Sat, May 09, 2009 at 07:53:50PM +0200, Federico Fissore wrote:
> I've a windows (virtual) box with windows xp originally installed and a  
> windows 2k lately installed
>
Are they both installed on the same disk?

> If I run kvm from the command line for testing purposes everything is  
> fine. If I run it with libvirt on the host, I does not boot, complaining  
> with an I/O error
>
> the problem arises since libvirt adds boot=on on the first disk
>
> without that option, everything works fine
>
> do you have any hint on this?
>
libvirt should not add boot=on if interface type is IDE and if disk type
is not IDE then boot is supported only from one disk (the one that has
boot=on).



--
			Gleb.

Re: boot=on option fails on win 2k/xp double boot

[Federico Fissore]

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Gleb Natapov, il 10/05/2009 07:21, ha scritto:
> On Sat, May 09, 2009 at 07:53:50PM +0200, Federico Fissore wrote:
>> I've a windows (virtual) box with windows xp originally installed and a  
>> windows 2k lately installed
>>
> Are they both installed on the same disk?


yes they are

> 
>> If I run kvm from the command line for testing purposes everything is  
>> fine. If I run it with libvirt on the host, I does not boot, complaining  
>> with an I/O error
>>
>> the problem arises since libvirt adds boot=on on the first disk
>>
>> without that option, everything works fine
>>
>> do you have any hint on this?
>>
> libvirt should not add boot=on if interface type is IDE and if disk type
> is not IDE then boot is supported only from one disk (the one that has
> boot=on).
> 

attached is the xml
the current non-working version uses disk images. but it fails the same 
way when using LVM volumes

other info: libvirt version is 0.4.6-10 and kvm is 72. these are what is 
currenntly available with debian lenny


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<domain type='kvm'>
  <name>nord_recuperi</name>
  <uuid>ac298be5-4c11-e7cd-4093-36c951445d3f</uuid>
  <memory>1048576</memory>
  <currentMemory>1048576</currentMemory>
  <vcpu>1</vcpu>
  <os>
    <type arch='x86_64' machine='pc'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <pae/>
  </features>
  <clock offset='localtime'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/bin/kvm</emulator>
    <disk type='file' device='disk'>
      <source file='/DATA/virtual.machines/nr/nr_c.qcow2'/>
      <target dev='hda' bus='ide'/>
    </disk>
    <disk type='file' device='disk'>
      <source file='/DATA/virtual.machines/nr/nr_e.qcow2'/>
      <target dev='hdb' bus='ide'/>
    </disk>
    <disk type='block' device='cdrom'>
      <source dev='/dev/cdrom'/>
      <target dev='hdc' bus='ide'/>
      <readonly/>
    </disk>
    <interface type='bridge'>
      <mac address='54:a4:7e:c0:0b:24'/>
      <source bridge='br2'/>
    </interface>
    <input type='mouse' bus='ps2'/>
    <graphics type='vnc' port='5903' autoport='no' listen='192.168.46.20' keymap='it'/>
  </devices>
</domain>

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Re: boot=on option fails on win 2k/xp double boot

[Gleb Natapov]

On Sun, May 10, 2009 at 10:38:18AM +0200, Federico Fissore wrote:
> Gleb Natapov, il 10/05/2009 07:21, ha scritto:
>> On Sat, May 09, 2009 at 07:53:50PM +0200, Federico Fissore wrote:
>>> I've a windows (virtual) box with windows xp originally installed and 
>>> a  windows 2k lately installed
>>>
>> Are they both installed on the same disk?
>
>
> yes they are
>
>>
>>> If I run kvm from the command line for testing purposes everything is 
>>>  fine. If I run it with libvirt on the host, I does not boot, 
>>> complaining  with an I/O error
>>>
>>> the problem arises since libvirt adds boot=on on the first disk
>>>
>>> without that option, everything works fine
>>>
>>> do you have any hint on this?
>>>
>> libvirt should not add boot=on if interface type is IDE and if disk type
>> is not IDE then boot is supported only from one disk (the one that has
>> boot=on).
>>
>
> attached is the xml
> the current non-working version uses disk images. but it fails the same  
> way when using LVM volumes
>
> other info: libvirt version is 0.4.6-10 and kvm is 72. these are what is  
> currenntly available with debian lenny
>
Can you please try non ancient version of KVM? kvm-85?

--
			Gleb.

Re: boot=on option fails on win 2k/xp double boot

[Federico Fissore]

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Gleb Natapov, il 10/05/2009 10:51, ha scritto:
>> other info: libvirt version is 0.4.6-10 and kvm is 72. these are what is  
>> currenntly available with debian lenny
>>
> Can you please try non ancient version of KVM? kvm-85?

unfortunately no, since that's the current stable version available with 
debian lenny :(

(btw, the latest available version is 84 on debian "experimental" !: not 
a version I would like to use on production)

I took it off libvirt and handled it manually with a startup script

thanks all the same

federico

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Re: boot=on option fails on win 2k/xp double boot

[Gleb Natapov]

On Mon, May 11, 2009 at 11:20:21AM +0200, Federico Fissore wrote:
> Gleb Natapov, il 10/05/2009 10:51, ha scritto:
>>> other info: libvirt version is 0.4.6-10 and kvm is 72. these are what 
>>> is  currenntly available with debian lenny
>>>
>> Can you please try non ancient version of KVM? kvm-85?
>
> unfortunately no, since that's the current stable version available with  
> debian lenny :(
>
> (btw, the latest available version is 84 on debian "experimental" !: not  
> a version I would like to use on production)
>
> I took it off libvirt and handled it manually with a startup script
>
> thanks all the same
>
May be you can test it not in production? On another machine. Or
alternatively you can compile only userspace of kvm-84 and run it
with kernel kvm modules available in lenny. Another option would be 
to run kvm-84 with -no-kvm flag.

--
			Gleb.

Re: boot=on option fails on win 2k/xp double boot

[Federico Fissore]

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Gleb Natapov, il 11/05/2009 11:26, ha scritto:
> May be you can test it not in production? On another machine. Or
> alternatively you can compile only userspace of kvm-84 and run it
> with kernel kvm modules available in lenny. Another option would be 
> to run kvm-84 with -no-kvm flag.
> 

i've tried on my gentoo but I had some problems. I'll try asap with a fedora

btw the pure kvm support on debian lenny seems good, while libvirt & C. 
suck: I had a Centos 5.3 guest (asterisknow) and network performance 
degraded with time: after 12 hours the guest was unable to connect to 
VoIP phones. Running KVM directly (with plain old rc.local) solved the 
problem.

As said, the whole kvm stack on lenny is old and that maybe the problem.

Thanks for your help and time

Federico

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