From owner-freebsd-questions@freebsd.org Sun Feb 24 19:10:22 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1F92F150802C for ; Sun, 24 Feb 2019 19:10:22 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 02C44828F1 for ; Sun, 24 Feb 2019 19:10:20 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de ([92.195.28.147]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.183]) with ESMTPA (Nemesis) id 1MKKd7-1gjKj71baB-00LjtO; Sun, 24 Feb 2019 20:10:18 +0100 Date: Sun, 24 Feb 2019 20:10:18 +0100 From: Polytropon To: JD Cc: freebsd-questions@freebsd.org Subject: Re: Recover failed SD card Message-Id: <20190224201018.a45fc325.freebsd@edvax.de> In-Reply-To: <5C72B3FF.7020002@gmail.com> References: <2341a9ac-42aa-737e-441f-b69cccc826c6@netfence.it> <20190224055321.14e7e462.freebsd@edvax.de> <5C72B3FF.7020002@gmail.com> Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:s8bea+kPP278seMJ4G6wpS0JJ3KnJlJKOpcDwf+gb/qUBEjWxN1 5x82kbgujkIfrq/R91VayGyxUMdXKaz6SuuZyw+RKftIH4OS5/2x74442chSqUMCfkd5uI5 psJmZLeaQaQZlAnea23wl9aXhwoJelu2qSmhGb7H7aPE7UJcGmbtUq9DVcHeEf0si0czP7u EpPvtEF9S10bEJq/K4sgg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:qjbCuVXx2zI=:QdoVFrF6zBsnWan+1yQyXD WFnUsrLldJL/jdQbwEZmElnLMtfgfU7yhX0jPFIBnIQMbe0CpgXpJEPeIivjD1P8tCfOiJm69 fp2D6lf4JZWPTNN3jyO1WU7GCl2Mv8kPTX4kiXaNNRyx7dGMh+y+ecVdlf1cz5eb8bn4Oajnn NmF0PbZ9vcluIEh6fWhFG6Sn7kWBZ5EpN/p1k3qjOTEo5IHWCtxqGKYPSGZ/VaXuRsCwMXXTL hzsA1c1RM2gJG3+/VF+T8jLHY7V/pPp5AJ9kh6hepaAEks//KsZH3xe7nEDXoF8Xd91FZ/yUZ NrSWWtWp4+9Hz8AGKomF7Su8ABhW0NthvXvJSKUgQAn3qcynX+7/uagdhaLOzkEVNw7vzH7FG Np/k1hOd6Qg0BD9jftk29UbMmiNgWMNIGlOjtCeiIL7CiD/egULgYdihcrYMm9lg2cXdEKVOt pgtRVRz9muvRr9TBa9+C2fBmPKlssoggmroKYpUtecky57Thhz1bPzB44pSHYmyZstWqoENad NPOVV8fCy5it9/dokVvkrtL0H1QXj6hueqSUrOZIzJn16V6WOLLIIZ4hAhPCiTHgQzg6xPe29 Yz0QEcWL9WahRMKERYlUZzxSDGakmE7mD8pl4yBV7sVF/h1zLHp8zxJCo5SVJ7RWpuWnypYV6 izbP2JKD/X5cZdxIjPI96laARCOWBnRFZI1n3gE0E4U06X3aS++dODa+u3vM6l+e4qBVtkUAG KJgzEg+Uy72s0/+UZ6OSyG/nD6JEGLX2GjcNqGwZGEpRo1g71UoU663n+LE= X-Rspamd-Queue-Id: 02C44828F1 X-Spamd-Bar: +++++ Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [5.04 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[freebsd@edvax.de]; TO_DN_SOME(0.00)[]; MV_CASE(0.50)[]; HAS_ORG_HEADER(0.00)[]; MX_GOOD(-0.01)[cached: mx01.schlund.de]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; R_DKIM_NA(0.00)[]; ASN(0.00)[asn:8560, ipnet:212.227.0.0/16, country:DE]; MIME_TRACE(0.00)[0:+]; RECEIVED_SPAMHAUS_PBL(0.00)[147.28.195.92.zen.spamhaus.org : 127.0.0.10]; ARC_NA(0.00)[]; REPLYTO_EQ_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; NEURAL_SPAM_SHORT(0.54)[0.544,0]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[edvax.de]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.97)[0.973,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_SPAM_LONG(0.93)[0.927,0]; RCVD_IN_DNSWL_NONE(0.00)[13.17.227.212.list.dnswl.org : 127.0.5.0]; MID_CONTAINS_FROM(1.00)[]; R_SPF_NA(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; IP_SCORE(0.20)[ipnet: 212.227.0.0/16(-0.84), asn: 8560(1.87), country: DE(-0.01)] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 24 Feb 2019 19:10:22 -0000 On Sun, 24 Feb 2019 08:10:55 -0700, JD wrote: > There is a free utility called testdisk. > I used it to recover files from a dead drive that would not mount > and would not re-format. > I recovered about 200+GB of important files. I've been using testdisk was well, but in this specific case, it wouldn't help. All those tools rely on the OS performing the (block) I/O operations, and if the device says "end of medium", they stop and never reach the _actual_ data which might or might not (!) still be there somewhere in the memory chip, guarded by the card's controller. There are even more sophisticated recovery tools (refer to my "big important list of recovery tools" posted occassionally on this list), but I fear none of them would be any help here. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...