Need commands to fetch Guest VM OS version from Xen and KVM

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LEARN ABOUT DEBIAN

xen-update-image

XEN-UPDATE-IMAGE(8)					 Perl Programmers Reference Guide				       XEN-UPDATE-IMAGE(8)

NAME

       xen-update-image - Update the software installed upon offline Xen images.

SYNOPSIS

	 xen-update-image [options] imageName1 imageName2 .. imageNameN

	 Help Options:
	  --help      Show this scripts help information.
	  --manual    Read this scripts manual.
	  --version   Show the version number and exit.

	 General Options:
	  --dir       Specify the directory which contains the image(s).
	  --lvm       Specify the LVM volume group which contains the image(s).
	  --evms      Specify the EVMS container which contains the image(s).

OPTIONS

       --dir Specify the directory which contains the image(s).
       --evms Specify the EVMS container which contains the image(s).
       --help Show the script help.
       --lvm Specify the LVM volume group which contains the image(s).
       --manual Read the manual.
       --version Show the version number and exit.

DESCRIPTION

	 xen-update-image is a simple script which allows you to update
	a Xen image of Debian which has been created with xen-create-image.

	 It does this by mounting the image inside a temporary directory
	then running:

	     apt-get update

	     apt-get upgrade

	 NOTE If the image is already running within Xen this will cause
	corruption otherwise it will allow you to update your image without
	booting it.

EXAMPLES

	 The following assumes there are two images which are not currently
	running.  The images are called 'test.my.flat', and 'x11.my.flat'.

	 Updating both images can be accomplished by executing:

	    xen-update-images --dir=/home/xen test.my.flat x11.my.flat

AUTHORS

	Steve Kemp, http://www.steve.org.uk/
	Axel Beckert, http://noone.org/abe/
	StA~Xphane Jourdois

LICENSE

       Copyright (c) 2005-2009 by Steve Kemp, (c) 2010 by The Xen-Tools Development Team. All rights reserved.

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.  The LICENSE file contains the
       full text of the license.

4.3.1								    2012-06-30						       XEN-UPDATE-IMAGE(8)

UNIX for Advanced & Expert Users