{"id":274,"date":"2006-05-05T21:46:00","date_gmt":"2006-05-05T21:46:00","guid":{"rendered":"http:\/\/markwilson.me.uk\/blog\/2006\/05\/duplicating-virtual-machines-using.htm"},"modified":"2007-03-09T14:10:39","modified_gmt":"2007-03-09T14:10:39","slug":"duplicating-virtual-machines-using","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/duplicating-virtual-machines-using.htm","title":{"rendered":"Duplicating virtual machines using SysPrep"},"content":{"rendered":"<p><!--114686905505767295-->One of the joys of virtualisation is the flexibility afforded by the ability to copy virtual machine files around the network for backup purposes or just to create a new machine (especially with <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2006\/04\/microsoft-sets-virtualisation-free.htm\">Microsoft&#8217;s new Virtual Server licensing arrangements<\/a>).  Unfortunately, just as for &#8220;real&#8221; computers, <a href=\"http:\/\/technet2.microsoft.com\/WindowsServer\/en\/Library\/2d1b61f4-4296-423a-a1bc-62db8b65a6521033.mspx\">simple file copies of Windows-based virtual machines can cause problems<\/a> and are not supported (see <a href=\"http:\/\/support.microsoft.com\/?kbid=162001\">Microsoft knowledge base article 162001<\/a>).<\/p>\n<p>All is not lost though, as <a href=\"http:\/\/technet2.microsoft.com\/WindowsServer\/en\/Library\/37e6a477-b308-457c-9653-31ec3c43a9671033.mspx\">Microsoft does support the duplication of virtual hard disks using the system preparation tool<\/a> (SysPrep) and Megan Davis has written about <a href=\"http:\/\/blogs.technet.com\/megand\/articles\/357570.aspx\">sysprepping virtual machines<\/a> on her blog. I tested it today and it works really well &#8211; basically a 3 step process of:<\/p>\n<ol>\n<li>Install and configure a source virtual machine as required (i.e. operating system installed, virtual machine additions installed, service packs and other updates applied), making sure it is in a workgroup (i.e. not a domain member).<\/li>\n<li>Locate the appropriate version of the Windows deployment tools (I used the ones from the \\support\\tools\\deploy.cab file on a Windows Server 2003 CD) and create an answer file (C:\\sysprep\\sysprep.inf).  Then copy the sysprep.exe and setupcl.exe deployment tools to C:\\sysprep.<\/li>\n<li>Run SysPrep to reseal and shut down the guest operating system, then copy the <em>virtualmachinename<\/em>.vhd file to a secure location (make it read-only to prevent accidental overwrites, but also apply appropriate NTFS permissions).  This file can then be duplicated at will to quickly create new virtual machines with a fully-configured operating system.<\/li>\n<\/ol>\n<p>For anyone who is unfamiliar with SysPrep, check out <a href=\"http:\/\/www.geocities.com\/kilian0072002\/sysprep\/sysprep.html\">Killan&#8217;s guide to SysPrep<\/a> (which, despite claiming not to be written for corporate administrators or OEM system builders, seems like a pretty good reference to me).<\/p>\n<p><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/images\/px1223e-1g32.jpg?w=700&#038;ssl=1\" alt=\"Toshiba PX1223E-1G32 320GB External Hard Disk\" border=\"0\" \/>Incidentally, there are major performance gains to be had by moving virtual machines onto another disk (spindle &#8211; not just partition).  Unfortunately my <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2004\/10\/ultra-portable-external-storage.htm\">repurposed laptop hard disks<\/a> were too slow (especially on a <a href=\"http:\/\/www.yale.edu\/pclt\/PCHW\/usbfirewire.htm\">USB 1.1 connection<\/a>), so I had to go out this afternoon and buy a USB 2.0 PCI adapter along with a decent external hard disk (a Toshiba 320GB 7200 RPM external USB 2.0 hard drive with 8MB data buffer) &#8211; that speeded things up nicely.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>One of the joys of virtualisation is the flexibility afforded by the ability to copy virtual machine files around the network for backup purposes or just to create a new machine (especially with Microsoft&#8217;s new Virtual Server licensing arrangements). Unfortunately, just as for &#8220;real&#8221; computers, simple file copies of Windows-based virtual machines can cause problems &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/duplicating-virtual-machines-using.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Duplicating virtual machines using SysPrep<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[33,54,13],"class_list":["post-274","post","type-post","status-publish","format-standard","hentry","tag-windows","tag-os-deployment","tag-virtualisation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Duplicating virtual machines using SysPrep - markwilson.it<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/duplicating-virtual-machines-using.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Duplicating virtual machines using SysPrep - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"One of the joys of virtualisation is the flexibility afforded by the ability to copy virtual machine files around the network for backup purposes or just to create a new machine (especially with Microsoft&#8217;s new Virtual Server licensing arrangements). Unfortunately, just as for &#8220;real&#8221; computers, simple file copies of Windows-based virtual machines can cause problems &hellip; Continue reading Duplicating virtual machines using SysPrep\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/duplicating-virtual-machines-using.htm\" \/>\n<meta property=\"og:site_name\" content=\"markwilson.it\" \/>\n<meta property=\"article:published_time\" content=\"2006-05-05T21:46:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2007-03-09T14:10:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.markwilson.co.uk\/blog\/images\/px1223e-1g32.jpg\" \/>\n<meta name=\"author\" content=\"Mark Wilson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:site\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Wilson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm\"},\"author\":{\"name\":\"Mark Wilson\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"headline\":\"Duplicating virtual machines using SysPrep\",\"datePublished\":\"2006-05-05T21:46:00+00:00\",\"dateModified\":\"2007-03-09T14:10:39+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm\"},\"wordCount\":365,\"commentCount\":1,\"publisher\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"image\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/px1223e-1g32.jpg\",\"keywords\":[\"Microsoft Windows\",\"Operating System Deployment\",\"Virtualisation\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm\",\"name\":\"Duplicating virtual machines using SysPrep - markwilson.it\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/px1223e-1g32.jpg\",\"datePublished\":\"2006-05-05T21:46:00+00:00\",\"dateModified\":\"2007-03-09T14:10:39+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#primaryimage\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/px1223e-1g32.jpg\",\"contentUrl\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/images\\\/px1223e-1g32.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2006\\\/05\\\/duplicating-virtual-machines-using.htm#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Duplicating virtual machines using SysPrep\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/\",\"name\":\"markwilson.it\",\"description\":\"get-info -class technology | write-output &gt; 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Whilst many offline images will be templates, they may still require operating system, security or application updates to ensure that they are not vulnerable when started (or when\u2026","rel":"","context":"In \"Microsoft System Center Virtual Machine Manager\"","block_context":{"text":"Microsoft System Center Virtual Machine Manager","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/scvmm"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":285,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/how-not-to-image-servers.htm","url_meta":{"origin":274,"position":1},"title":"How not to image servers","author":"Mark Wilson","date":"Tuesday 23 May 2006","format":false,"excerpt":"A couple of weeks back, I wrote about using Microsoft's system preparation tool (SysPrep) to prepare virtual machine images for duplication. It doesn't really matter whether the machine is virtual or physical, the principle is still the same (my point was that cloning virtual machines using a file copy is\u2026","rel":"","context":"In \"Microsoft Active Directory\"","block_context":{"text":"Microsoft Active Directory","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/active-directory"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":90,"url":"https:\/\/www.markwilson.co.uk\/blog\/2004\/10\/technical-overview-of-microsoft.htm","url_meta":{"origin":274,"position":2},"title":"Technical overview of Microsoft Virtual Server 2005","author":"Mark Wilson","date":"Thursday 28 October 2004","format":false,"excerpt":"Last month, I wrote a post in which I commented on the improved TechNet evenings hosted by Microsoft in the UK. A couple of nights back I attended another one and this time the topic was a technical overview of Microsoft Virtual Server 2005, presented by Thomas Lee from QA\u2026","rel":"","context":"In \"Microsoft Virtual Server\/Hyper-V\"","block_context":{"text":"Microsoft Virtual Server\/Hyper-V","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/hyper-v"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":936,"url":"https:\/\/www.markwilson.co.uk\/blog\/2007\/11\/creating-and-managing-a-virtual-environment-on-the-microsoft-platform.htm","url_meta":{"origin":274,"position":3},"title":"Creating and managing a virtual environment on the Microsoft platform","author":"Mark Wilson","date":"Saturday 3 November 2007","format":false,"excerpt":"Several months back, I blogged about a Microsoft event with a difference - one which, by and large, dropped the PowerPoint deck and scripted demos in favour of a more hands-on approach. That was the Windows Vista after hours event (which I know has been popular and re-run several times)\u2026","rel":"","context":"In \"Microsoft System Center Virtual Machine Manager\"","block_context":{"text":"Microsoft System Center Virtual Machine Manager","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/scvmm"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":184,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/10\/using-ads-to-deploy-windows-xp.htm","url_meta":{"origin":274,"position":4},"title":"Using ADS to deploy Windows XP","author":"Mark Wilson","date":"Wednesday 19 October 2005","format":false,"excerpt":"One of the main reasons for needing to SysPrep my Windows XP installation was that I wanted to see if it is possible to use Microsoft Automated Deployment Services (ADS) to deploy Windows XP. Microsoft has a plethora of deployment solutions and the main one for workstation deployment is the\u2026","rel":"","context":"In \"Microsoft Windows XP\"","block_context":{"text":"Microsoft Windows XP","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/windows-xp"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1561,"url":"https:\/\/www.markwilson.co.uk\/blog\/2009\/11\/mark-russinovich-explains-the-machine-sid-duplication-myth.htm","url_meta":{"origin":274,"position":5},"title":"Mark Russinovich explains &#8220;the machine SID duplication myth&#8221;","author":"Mark Wilson","date":"Thursday 19 November 2009","format":false,"excerpt":"One of my colleagues just flagged a blog post I'd been meaning to read when I have a little more time from Microsoft (ex-SysInternals) Technical Fellow Mark Russinovich in which he discusses \"the machine SID duplication myth\". It seems that all of the effort we put into de-duplicating SIDs on\u2026","rel":"","context":"In \"Microsoft Windows\"","block_context":{"text":"Microsoft Windows","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/windows"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=274"}],"version-history":[{"count":0,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/274\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}