Date: Wed, 30 Sep 2020 14:59:32 +0200 From: Christoph Kukulies <kuku@kukulies.org> To: Polytropon <freebsd@edvax.de> Cc: freebsd-questions@freebsd.org Subject: Re: concluding from dd raw dump size to disk mfgr Message-ID: <F5976B86-7257-4507-A53C-4511674549D5@kukulies.org> In-Reply-To: <20200930133550.24c382b6.freebsd@edvax.de> References: <876b79ff-b781-fede-a4de-cb58becd557c@kukulies.org> <20200930133550.24c382b6.freebsd@edvax.de>
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--Apple-Mail=_C0EFD52E-D8D1-4AE8-B929-640D4CC1082B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Thanks. In my case I didn=E2=80=99t have physical access nor any access = to the system I took the dd dump from. I thought just to identify the drive from the calculation of the dump = size. But meanwhile I identified a device that fits and that probably must = have the type of drive I took the dump from: Toshiba MQ01ABF050 > Am 30.09.2020 um 13:35 schrieb Polytropon <freebsd@edvax.de>: >=20 > On Wed, 30 Sep 2020 09:40:00 +0200, Christoph Kukulies wrote: >> I made a dd dump of a raw disk device the other day. The size of the=20= >> dump is exactly >>=20 >> 500107862016 bytes in size, corresponding to 997773168 sectors = (512bytes). >>=20 >> I would like to dump this file back to a physical device. Best would = be=20 >> the one which fits exactly that size. Unfortunately I presently don't=20= >> know what drive mfgr./type this corresponds to. Is there a way to = find out? >=20 > A convenient way is to use the following command: >=20 > # diskinfo -v <device> >=20 > Also check the corresponding entry in the "dmesg" output. >=20 > Note that AF devices might prefer a sector size of 4kB (4039 What is =E2=80=9EAF=E2=80=9C devices? > instead of 512 bytes). When you transfer data back using dd, > you can often choose a better suited block size, usually in > the range of several MBs. :-) >=20 >=20 -- Christoph --Apple-Mail=_C0EFD52E-D8D1-4AE8-B929-640D4CC1082B Content-Disposition: attachment; filename=smime.p7s Content-Type: application/pkcs7-signature; name=smime.p7s Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCCc0w ggSQMIIDeKADAgECAggYVYMhomAL1zANBgkqhkiG9w0BAQsFADBmMQswCQYDVQQGEwJERTEzMDEG A1UECgwqREdOIERldXRzY2hlcyBHZXN1bmRoZWl0c25ldHogU2VydmljZSBHbWJIMSIwIAYDVQQD DBlkZ25zZXJ2aWNlIENBIDIgVHlwZSBFOlBOMB4XDTIwMDUxNjE1Mjc1OVoXDTIxMDUxNjE1Mjc1 OVowbzELMAkGA1UEBhMCREUxITAfBgNVBAUTGDQwMDAwMDAwNWVjMDA4ZGQzNzNhZDhlYzEbMBkG A1UEAwwSQ2hyaXN0b3BoIEt1a3VsaWVzMSAwHgYJKoZIhvcNAQkBFhFrdWt1QGt1a3VsaWVzLm9y ZzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKug1655hQWRmOtGAShZLbMwDtrm7rAH 7p1oPtE/5KpTpJZe8LHPxxvW0EAd2JcLtEhdvAi7smhZ/giJ3IBK7OYmdaCvuQ6MFvJpkmLkQ9TO 4+RLW+PkBk8nFIUe+PQG+VurpWc8pbU4IRsWS3pEUgov9+LF6VtyYBHKD2HZwe46YBwUq7l0EHxc aa98ewCMO43XznlqjE+oKxwaS2nl1rL/SPVlfGmKqHkdSKEKl6yR1LCcI3J3HP56kqmIrvtySr7q UZVsibA+D6vArqklO99WKQmt0b4IX6TXouvAA6bNoF1FhYUyihm4omMWZkdTs7Gv5rr1fzPWXcev cMfJdtUCAwEAAaOCATcwggEzMB0GA1UdDgQWBBSQh9N17gCH/igJy5ftrVaJNm6SCTAMBgNVHRMB Af8EAjAAMB8GA1UdIwQYMBaAFOnGk9HVDwZkcupqlj66EPJUVLJ5MFYGA1UdIARPME0wSwYMKwYB BAH7KwIBAwIIMDswOQYIKwYBBQUHAgEWLWh0dHA6Ly9zZWM1LmRnbnNlcnZpY2UuZGUvcG9saWNp ZXMvaW5kZXguaHRtbDA+BgNVHR8ENzA1MDOgMaAvhi1odHRwOi8vc2VjNS5kZ25zZXJ2aWNlLmRl L2NybC9jcmwyLXR5cGUtZS5jcmwwDgYDVR0PAQH/BAQDAgSwMB0GA1UdJQQWMBQGCCsGAQUFBwMC BggrBgEFBQcDBDAcBgNVHREEFTATgRFrdWt1QGt1a3VsaWVzLm9yZzANBgkqhkiG9w0BAQsFAAOC AQEALUBRNzLAUiPi29LLATqWmrUlyacMVAtjdROQMd/AVPj0mUqTMoDO+YoWICOSEn/nEyb2Lrrz JNGqC6KO0CNROaWcEhFadKx4qtp9t26Qe/EkO0XbXexIfBxFl1ynQA54D0qtPb/SUZvTy0tq8oBt FdsIU+cXAzigEz2Z9nziHBMqThoKzAZSrk/sPvxT6MNMC/BMGlHGl0DV//wwI5vlzJiKS8iXFyxf 5VrN1IwgRyqXD8JsgF1BuEqcloSJ3JnWUGQCTURFasZDJlP0f/KJS8odUpEWDKnn6tt0RjBk0jUN i7z42ozzPn/o154AgXC2cNmROxC0gnvd+V/yIuAryDCCBTUwggQdoAMCAQICCFUcStdmrSX2MA0G CSqGSIb3DQEBCwUAMGExCzAJBgNVBAYTAkRFMTMwMQYDVQQKDCpER04gRGV1dHNjaGVzIEdlc3Vu ZGhlaXRzbmV0eiBTZXJ2aWNlIEdtYkgxHTAbBgNVBAMMFGRnbnNlcnZpY2UgUm9vdCA3OlBOMB4X DTE2MTAyNjA5MjI0MVoXDTI0MTAyNjA5MjI0MVowZjELMAkGA1UEBhMCREUxMzAxBgNVBAoMKkRH TiBEZXV0c2NoZXMgR2VzdW5kaGVpdHNuZXR6IFNlcnZpY2UgR21iSDEiMCAGA1UEAwwZZGduc2Vy dmljZSBDQSAyIFR5cGUgRTpQTjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANyl8pQ/ dMejR9KXZs5ro81tFwNhloThlXe8sat79Tjjk6xFqE5E94//0vifJxMrp9RrCkNOo5oPG1djGOgk 0L0ucpHFUH9SQF/SHbm83QvWJXgqEJpjxOKZXTPbJRKVvY25niB0FTr2omRqypiP4A/w5xA6jSJ2 P02vV6WgcPfaLQkM+SEGPxV/pzpvuY3KfzJ9li9mXPNXaJD9y+jqIUvHbCAbuYKQ5nwEAcYMXDpP RQgDQGTrRiFExHEjsZeMzEFADZj9deg/h29AMO0w2YrSvkNReh/zvDZutdy25DZvjE3AUgStWgBC 7x+2ddOb2I61o6xbIsxlfq/mzNpAGoECAwEAAaOCAeowggHmMBIGA1UdEwEB/wQIMAYBAf8CAQAw HwYDVR0jBBgwFoAUAQwWG3Ry0zwU7iZ3t0kUU9j7ixswWwYIKwYBBQUHAQEETzBNMEsGCCsGAQUF BzABhj9odHRwOi8vcm9jc3AtZGduLmRnbnNlcnZpY2UuZGU6ODA4MC9lamJjYS9wdWJsaWN3ZWIv c3RhdHVzL29jc3AwagYDVR0gBGMwYTBfBgwrBgEEAfsrAgEEAgEwTzBNBggrBgEFBQcCARZBaHR0 cDovL3d3dy5kZ25zZXJ2aWNlLmRlL3RydXN0Y2VudGVyL3B1YmxpYy9kZ25zZXJ2aWNlL2luZGV4 Lmh0bWwwgZkGA1UdHwSBkTCBjjCBi6CBiKCBhYaBgmxkYXA6Ly9sZGFwLmRnbnNlcnZpY2UuZGU6 Mzg5L0NOPUNSTC0xLE89REdOJTIwU2VydmljZSUyMEdtYkgsQz1ERT9jZXJ0aWZpY2F0ZVJldm9j YXRpb25MaXN0P2Jhc2U/b2JqZWN0Q2xhc3M9Y1JMRGlzdHJpYnV0aW9uUG9pbnQwHQYDVR0OBBYE FOnGk9HVDwZkcupqlj66EPJUVLJ5MA4GA1UdDwEB/wQEAwIBBjAbBgkrBgEEAcBtAwUEDjAMBgor BgEEAcBtAwUBMA0GCSqGSIb3DQEBCwUAA4IBAQCrvDn6Rcn7/FNq3SOJNfgYNfkdR5CiGoC4sZ+i 0dypCqqMXwbpRQjSriLS2eEe2V2Fms0E4SuBOEaxOg1nVjYafQVGtytRT0ueFIzB3VcnQl7oRFJ0 SHi9d/xjElAZkk8I8lytuWG57SabA72duEp7AaCWG3lVZIdNLy+rkNrfNvEUbqUh0TrZXgqpwwCL JjYF8vyC4I+xxNaXm3EmuNvgQ2j2dGp3Oxc0QbfLLOCbK/rOdDikaBN7kTqpfHls7pcIOhQrgrPV LzY/NHqG9zEpmjuQora63YHdu7BTzGp/DvcQwfyKa/gtb9LHn3AoSUqOKOMd02sUb/AxGhsNjMzJ MYIDFDCCAxACAQEwcjBmMQswCQYDVQQGEwJERTEzMDEGA1UECgwqREdOIERldXRzY2hlcyBHZXN1 bmRoZWl0c25ldHogU2VydmljZSBHbWJIMSIwIAYDVQQDDBlkZ25zZXJ2aWNlIENBIDIgVHlwZSBF OlBOAggYVYMhomAL1zANBglghkgBZQMEAgEFAKCCAXMwGAYJKoZIhvcNAQkDMQsGCSqGSIb3DQEH ATAcBgkqhkiG9w0BCQUxDxcNMjAwOTMwMTI1OTMyWjAvBgkqhkiG9w0BCQQxIgQg1I5QXMbWZEkT jYWZBMh4ji9W/35lP6A2YWHnaqyyAeYwgYEGCSsGAQQBgjcQBDF0MHIwZjELMAkGA1UEBhMCREUx MzAxBgNVBAoMKkRHTiBEZXV0c2NoZXMgR2VzdW5kaGVpdHNuZXR6IFNlcnZpY2UgR21iSDEiMCAG A1UEAwwZZGduc2VydmljZSBDQSAyIFR5cGUgRTpQTgIIGFWDIaJgC9cwgYMGCyqGSIb3DQEJEAIL MXSgcjBmMQswCQYDVQQGEwJERTEzMDEGA1UECgwqREdOIERldXRzY2hlcyBHZXN1bmRoZWl0c25l dHogU2VydmljZSBHbWJIMSIwIAYDVQQDDBlkZ25zZXJ2aWNlIENBIDIgVHlwZSBFOlBOAggYVYMh omAL1zANBgkqhkiG9w0BAQEFAASCAQAhfZ4icmeDNxN75vv6+PDNDfbZxiudiNdGbx06cGkwy2nu 3JIg218aHtCIK47cQosB1q2dyGzEiYCeY1EuD5+jY6IQ6xh8jj7NXK3GBzDgQlgAGn5JhbG+n3/q +uX4r5e3A8iM1Y6zKOUAyy52dpSrkKp+rhJixdKbnkRoPL9dAtfvRVpkcerRNrSFpGFoHT/nSJ10 easTXxIdrCLw0iIAihO7hxJuwM4zKrBRg7stVPALz7xBmtaiphYbvaXn+Mw9uHE3Is6YxWfzaPLi eRHsT0bRwZFF+mCuBhIzGacwurKNox4pxnIZm+bESWG/Nlvkb75EOOurkFIprSggYS+RAAAAAAAA --Apple-Mail=_C0EFD52E-D8D1-4AE8-B929-640D4CC1082B--
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