Libguestfs - Nov 2014 - Re: virt-v2v: Died at /usr/bin/virt-p2v-server line 411

On 10/11/14 16:01, Richard W.M. Jones wrote:
> On Mon, Nov 10, 2014 at 04:12:35PM +0100, Nicolas Ecarnot wrote:
>> Hi,
>>
>> In a oVirt 3.4.4 environnement, and using a
>> virt-p2v-0.9.1-2.20130730.1.el6.centos, I'm trying to convert a
>> windows 2003 server 32 bits into an oVirt KVM image.
>>
>> I already succeed doing that many times, but now, this is failing :
>> - All the usual process sounds good :
>> PXE -> DHCP -> connection to the P2V server -> choosing the
profile
>> -> (checking the debug option) -> running the conversion
>>
>> But in the end (100%), the only error message I get is :
>> "virt-v2v: Died at /usr/bin/virt-p2v-server line 411"
>> which does not help me that much, because it is related to some
>> conversion made by libguestfs, I suppose, and I correctly installed
>> the libguestfs-winsupport files into the correct directories.
>>
>> An evidence of that is a recent failure when converting from KVM to
>> oVirt (so : _V_2V), SOLVED by installing the correct directories in
>> the correct places.
>>
>> As I recently switched in this almost-new virt-p2p version (0.9.1),
>> I was able to activate some useful logs that are available there :
>> https://www.ecarnot.net/tmp/virt-p2v-server.1415622286.log.gz
>>
>> It has been days since I'm trying to contact Matthew via IRC, but
he
>> seems to love travelling away for it, and I pray he would find a
>> minute to read this and give a hint.
>>
>> Thank you,
>>
>> Best regards,
>>
>> -- 
>> Nicolas Ecarnot
>>
>> _______________________________________________
>> Libguestfs mailing list
>> Libguestfs@redhat.com
>> https://www.redhat.com/mailman/listinfo/libguestfs
> 
> Matt - any ideas?
> 
> There is also the new version of p2v/v2v available, although it
> requires recent Fedora or RHEL/Centos 7.0.
This is the last thing it does before unwinding:

libguestfs: trace: cp "/transferxdTiHj/windows/rhev-apt.exe"
"/Program
Files/RedHat/V2V Firstboot"
libguestfs: trace: cp = 0

So, maybe the guest is out of disk space, or has filesystem corruption?

Matt
> 
> Rich.
> 
> 

-- 
Matthew Booth
Red Hat Engineering, Virtualisation Team

Phone: +442070094448 (UK)
GPG ID:  D33C3490
GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490

On Mon, Nov 10, 2014 at 04:52:35PM +0000, Matthew Booth
wrote:
> On 10/11/14 16:01, Richard W.M. Jones wrote:
> > On Mon, Nov 10, 2014 at 04:12:35PM +0100, Nicolas Ecarnot wrote:
> >> Hi,
> >>
> >> In a oVirt 3.4.4 environnement, and using a
> >> virt-p2v-0.9.1-2.20130730.1.el6.centos, I'm trying to convert
a
> >> windows 2003 server 32 bits into an oVirt KVM image.
> >>
> >> I already succeed doing that many times, but now, this is failing
:
> >> - All the usual process sounds good :
> >> PXE -> DHCP -> connection to the P2V server -> choosing
the profile
> >> -> (checking the debug option) -> running the conversion
> >>
> >> But in the end (100%), the only error message I get is :
> >> "virt-v2v: Died at /usr/bin/virt-p2v-server line 411"
> >> which does not help me that much, because it is related to some
> >> conversion made by libguestfs, I suppose, and I correctly
installed
> >> the libguestfs-winsupport files into the correct directories.
> >>
> >> An evidence of that is a recent failure when converting from KVM
to
> >> oVirt (so : _V_2V), SOLVED by installing the correct directories
in
> >> the correct places.
> >>
> >> As I recently switched in this almost-new virt-p2p version
(0.9.1),
> >> I was able to activate some useful logs that are available there :
> >> https://www.ecarnot.net/tmp/virt-p2v-server.1415622286.log.gz
> >>
> >> It has been days since I'm trying to contact Matthew via IRC,
but he
> >> seems to love travelling away for it, and I pray he would find a
> >> minute to read this and give a hint.
> >>
> >> Thank you,
> >>
> >> Best regards,
> >>
> >> -- 
> >> Nicolas Ecarnot
> >>
> >> _______________________________________________
> >> Libguestfs mailing list
> >> Libguestfs@redhat.com
> >> https://www.redhat.com/mailman/listinfo/libguestfs
> > 
> > Matt - any ideas?
> > 
> > There is also the new version of p2v/v2v available, although it
> > requires recent Fedora or RHEL/Centos 7.0.
> 
> This is the last thing it does before unwinding:
> 
> libguestfs: trace: cp "/transferxdTiHj/windows/rhev-apt.exe"
"/Program
> Files/RedHat/V2V Firstboot"
> libguestfs: trace: cp = 0
> 
> So, maybe the guest is out of disk space, or has filesystem corruption?
New v2v enforces a minimum free space on mountable fses which I don't
think was in the old version.  If c:\ has less than 50 MB free it will
refuse to convert it.  Use 'virt-df' to check.

That said I would be surprised if the 'cp' succeeded but v2v crashed
suddenly because of insufficient space.

Rich.
> 
> Matt
> 
> > 
> > Rich.
> > 
> > 
> 
> 
> -- 
> Matthew Booth
> Red Hat Engineering, Virtualisation Team
> 
> Phone: +442070094448 (UK)
> GPG ID:  D33C3490
> GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490
-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org

Le 10/11/2014 20:09, Richard W.M. Jones a écrit :
>>> Matt - any ideas?
>>>
>>> There is also the new version of p2v/v2v available, although it
>>> requires recent Fedora or RHEL/Centos 7.0.
>>
>> This is the last thing it does before unwinding:
>>
>> libguestfs: trace: cp "/transferxdTiHj/windows/rhev-apt.exe"
"/Program
>> Files/RedHat/V2V Firstboot"
>> libguestfs: trace: cp = 0
>>
>> So, maybe the guest is out of disk space, or has filesystem corruption?
>
> New v2v enforces a minimum free space on mountable fses which I don't
> think was in the old version.  If c:\ has less than 50 MB free it will
> refuse to convert it.  Use 'virt-df' to check.
>
> That said I would be surprised if the 'cp' succeeded but v2v
crashed
> suddenly because of insufficient space.
Hello,

Do I have to understand that :
- I should perform a fsck on my guest filesystem before the P2V?
- I should ensure there is enough available space on it?

The partition I'm trying to convert is 50Go large, filled up with 
something like 40Go. Even with a big error margin, it seems comfortable.
Before the P2V, I did no fsck, but I used to microsoft defrag tool (the 
old 2003 one). I'm not sure it also checks the filesystem integrity...

- Finally, when you write about the "NEW" v2v, what version do you
speak
about? Is the one I used (0.9.1.2) not new enough? (I know it is not the 
very last, but quite decent though).

Well, thank you for having answered.
On this conversion, I have no choice but succeed.
I also tried the old livecd+netcat+dd option, but the OS did not even 
boot, even if I copied the MBR and double check the special flag with an 
hex editor ("FF").

So I will keep trying until success.

-- 
Nicolas Ecarnot