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Xen partition saving (was: [Xen-users] xm save issue)

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: Xen partition saving (was: [Xen-users] xm save issue)
From: "McFadden, Gordon" <gordon_mcfadden@xxxxxxxxx>
Date: Wed, 12 Jul 2006 13:27:08 -0700
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Thread-topic: Xen partition saving (was: [Xen-users] xm save issue)
John,

Thanks for the information.

What I am trying do is create a copy of a virtual machine that can be
restored.   The virtual machine is a Windows XP instance.

I am now looking at trying to take an image (or copy) of the partition I
used.  In the hvm ocnfig file, I use a reference like:

disk = [ 'phy:/dev/sdb5,ioemu:hda,w' ]

In fdisk, sdb looks like:

[root@cso-gm-desk xen]# fdisk /dev/sdb

The number of cylinders for this disk is set to 30401.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help): p

Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
...
/dev/sdb5            5377        7926    20482843+  83  Linux

But when I try to use some traditional partition tools, I get an error
about an unknown file type (not ext3fs, or ext2fs, or ntfs, etc).

I am looking for a solution.  One thing I was thinking was changing the
id (83) to NTFS (7).  Anyone think this would work?

Any other thoughts on how to do this task?


Thx

Gord

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of John
McCullough
Sent: Wednesday, July 12, 2006 11:43 AM
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] xm save issue

Gordon,

Save is not implemented for hvm guests yet.  According to the roadmap it
should be done within a few months.

Regards,
John McCullough

On Wed, Jul 12, 2006 at 11:07:50AM -0700, McFadden, Gordon wrote:
>  
> 
> Looking through the archives I see a few people had a similar problem
I
> am facing, but I do not see any solutions.
> 
>  
> 
> I am trying to execute a xm save and am getting the familiar 
> 
>  
> 
> XendError: /usr/lib64/xen/bin/xc_save 11 18 9 0 0 0 failed 
> 
> error message.
> 
>  
> 
> The xend.log contains:
> 
>  
> 
> [2006-07-12 11:03:51 xend] DEBUG (XendCheckpoint:80) [xc_save]:
> /usr/lib64/xen/bin/xc_save 11 18 9 0 0 0
> 
> [2006-07-12 11:03:51 xend] ERROR (XendCheckpoint:227) Couldn't map
> p2m_frame_list_list (errno 14): 14
> 
> [2006-07-12 11:03:51 xend] ERROR (XendCheckpoint:227) Save exit rc=1
> 
> [2006-07-12 11:03:51 xend] ERROR (XendCheckpoint:99) Save failed on
> domain win_xp (9).
> 
> Traceback (most recent call last):
> 
>   File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 93, in
save
> 
>     forkHelper(cmd, fd, saveInputHandler, False)
> 
>   File "/usr/lib64/python/xen/xend/XendCheckpoint.py", line 218, in
> forkHelper
> 
>     raise XendError("%s failed" % string.join(cmd))
> 
> XendError: /usr/lib64/xen/bin/xc_save 11 18 9 0 0 0 failed
> 
>  
> 
>  
> 
> Any clues to this?
> 
>  
> 
> Thanks
> 
>  
> 
> Gord
> 

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