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Thu, 14 Nov 2019 17:27:07 +0000 (UTC) Subject: Re: Convert VMDK to RAW To: janine.schneider@fau.de, qemu-devel@nongnu.org, qemu-block@nongnu.org References: <009201d59b06$475883f0$d6098bd0$@fau.de> From: Max Reitz Autocrypt: addr=mreitz@redhat.com; prefer-encrypt=mutual; keydata= mQENBFXOJlcBCADEyyhOTsoa/2ujoTRAJj4MKA21dkxxELVj3cuILpLTmtachWj7QW+TVG8U /PsMCFbpwsQR7oEy8eHHZwuGQsNpEtNC2G/L8Yka0BIBzv7dEgrPzIu+W3anZXQW4702+uES U29G8TP/NGfXRRHGlbBIH9KNUnOSUD2vRtpOLXkWsV5CN6vQFYgQfFvmp5ZpPeUe6xNplu8V mcTw8OSEDW/ZnxJc8TekCKZSpdzYoxfzjm7xGmZqB18VFwgJZlIibt1HE0EB4w5GsD7x5ekh awIe3RwoZgZDLQMdOitJ1tUc8aqaxvgA4tz6J6st8D8pS//m1gAoYJWGwwIVj1DjTYLtABEB AAG0HU1heCBSZWl0eiA8bXJlaXR6QHJlZGhhdC5jb20+iQFTBBMBCAA9AhsDBQkSzAMABQsJ CAcCBhUICQoLAgQWAgMBAh4BAheABQJVzie5FRhoa3A6Ly9rZXlzLmdudXBnLm5ldAAKCRD0 B9sAYdXPQDcIB/9uNkbYEex1rHKz3mr12uxYMwLOOFY9fstP5aoVJQ1nWQVB6m2cfKGdcRe1 2/nFaHSNAzT0NnKz2MjhZVmcrpyd2Gp2QyISCfb1FbT82GMtXFj1wiHmPb3CixYmWGQUUh+I AvUqsevLA+WihgBUyaJq/vuDVM1/K9Un+w+Tz5vpeMidlIsTYhcsMhn0L9wlCjoucljvbDy/ 8C9L2DUdgi3XTa0ORKeflUhdL4gucWoAMrKX2nmPjBMKLgU7WLBc8AtV+84b9OWFML6NEyo4 4cP7cM/07VlJK53pqNg5cHtnWwjHcbpGkQvx6RUx6F1My3y52vM24rNUA3+ligVEgPYBuQEN BFXOJlcBCADAmcVUNTWT6yLWQHvxZ0o47KCP8OcLqD+67T0RCe6d0LP8GsWtrJdeDIQk+T+F xO7DolQPS6iQ6Ak2/lJaPX8L0BkEAiMuLCKFU6Bn3lFOkrQeKp3u05wCSV1iKnhg0UPji9V2 W5eNfy8F4ZQHpeGUGy+liGXlxqkeRVhLyevUqfU0WgNqAJpfhHSGpBgihUupmyUg7lfUPeRM DzAN1pIqoFuxnN+BRHdAecpsLcbR8sQddXmDg9BpSKozO/JyBmaS1RlquI8HERQoe6EynJhd 64aICHDfj61rp+/0jTIcevxIIAzW70IadoS/y3DVIkuhncgDBvGbF3aBtjrJVP+5ABEBAAGJ ASUEGAEIAA8FAlXOJlcCGwwFCRLMAwAACgkQ9AfbAGHVz0CbFwf9F/PXxQR9i4N0iipISYjU sxVdjJOM2TMut+ZZcQ6NSMvhZ0ogQxJ+iEQ5OjnIputKvPVd5U7WRh+4lF1lB/NQGrGZQ1ic alkj6ocscQyFwfib+xIe9w8TG1CVGkII7+TbS5pXHRxZH1niaRpoi/hYtgzkuOPp35jJyqT/ /ELbqQTDAWcqtJhzxKLE/ugcOMK520dJDeb6x2xVES+S5LXby0D4juZlvUj+1fwZu+7Io5+B bkhSVPb/QdOVTpnz7zWNyNw+OONo1aBUKkhq2UIByYXgORPFnbfMY7QWHcjpBVw9MgC4tGeF R4bv+1nAMMxKmb5VvQCExr0eFhJUAHAhVg== Message-ID: <97e53c9c-7d3d-75e7-8227-7a1ff186f52e@redhat.com> Date: Thu, 14 Nov 2019 18:27:05 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <009201d59b06$475883f0$d6098bd0$@fau.de> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Mimecast-Spam-Score: 0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="9L1X55mk2QEFH0tnW7PJFlddLOysQ2Uki" X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.61 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --9L1X55mk2QEFH0tnW7PJFlddLOysQ2Uki Content-Type: multipart/mixed; boundary="cTGwnSNZcSHGO72Z7oVyglRvp7uuSNZT9" --cTGwnSNZcSHGO72Z7oVyglRvp7uuSNZT9 Content-Type: text/plain; charset=WINDOWS-1252 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 14.11.19 17:12, janine.schneider@fau.de wrote: > Ladies and Gentlemen, >=20 > =A0 >=20 > I am a PhD student at the Friedrich-Alexander-University > Erlangen-Nuremberg in Bavaria, Germany and am currently working on a > forensic reconstruction tool. The tool can be used to analyze physical > and virtual hard disks and to reconstruct files. I would now like to > extend the tool so that it is able to analyze VMDK files and convert > them to raw. Unfortunately I have not been able to understand how to > correctly unpack and assemble VMDK containers. Since qemu is able to > convert VMDK to raw, I wanted to ask you if you could explain to me how > to put the grains together? Hi, I=92m not quite sure what you mean by a =93VMDK container=94. VMDK disk images can consist of multiple files that are linked together by a descriptor file. In theory all you need to do is tell qemu-img to convert that descriptor file into a raw image. For example: (Sorry, I don=92t know much about VMware, so all I can do is use qemu tools to demonstrate) $ qemu-img create -f vmdk -o subformat=3DtwoGbMaxExtentSparse foo.vmdk 4G Formatting 'foo.vmdk', fmt=3Dvmdk size=3D4294967296 compat6=3Doff hwversion=3Dundefined subformat=3DtwoGbMaxExtentSparse $ ls foo-s001.vmdk=A0 foo-s002.vmdk=A0 foo.vmdk $ In this example, foo.vmdk is the descriptor file and it points to the other two (data) files: $ cat foo.vmdk # Disk DescriptorFile version=3D1 CID=3D6d8d65ed parentCID=3Dffffffff createType=3D"twoGbMaxExtentSparse" # Extent description RW 4194304 SPARSE "foo-s001.vmdk" RW 4194304 SPARSE "foo-s002.vmdk" # The Disk Data Base #DDB ddb.virtualHWVersion =3D "4" ddb.geometry.cylinders =3D "8322" ddb.geometry.heads =3D "16" ddb.geometry.sectors =3D "63" ddb.adapterType =3D "ide" $ So to convert this VMDK disk image to a raw image, you=92d simply do this: $ qemu-img convert -f vmdk -O raw -p foo.vmdk foo.img (100.00/100%) $ Max --cTGwnSNZcSHGO72Z7oVyglRvp7uuSNZT9-- --9L1X55mk2QEFH0tnW7PJFlddLOysQ2Uki Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEkb62CjDbPohX0Rgp9AfbAGHVz0AFAl3NjmkACgkQ9AfbAGHV z0AkzQf/eCWu7o1cP7EZLLWvSj2p3dDpz7gpVQlhlHmiSR1IUIzSd0VpCsG7RviE nBi4eZslVqCIrOmWFcuuTepEAL99SuZ/JZHBRJLPGCeswEN09HuHEF1V3V0V0HNF FwMZ8F6C4FeV8pMsxCYWaDbhiNIJjWVbezxgSTRVDvCgKtbpkAkCFhBLw0A5ZOJ2 CNPCczfDifgdj1xdG8DvF/IKcAYQPgujmj3ntOy1KadscDoVLciFUwwiYQ321EGD U3+V6KWAX2j1LQJHtM2/F/DnAzK5rAcIhceq4r6EOIkYtx9UO0ySyiiiI2aNRTru RvoxI7JjTy3G1bOLd1blDPUnh9M2Rg== =IV64 -----END PGP SIGNATURE----- --9L1X55mk2QEFH0tnW7PJFlddLOysQ2Uki--