Date: Sun, 15 Jul 2012 16:23:33 -0400 From: Jerry <jerry@seibercom.net> To: FreeBSD <freebsd-questions@freebsd.org> Subject: Re: fsck on FAT32 filesystem? Message-ID: <20120715162333.45b82082@scorpio> In-Reply-To: <20120715214823.679eb23d.freebsd@edvax.de> References: <CA%2BtpaK0H=L8pcSkOxxAekfy2rQV49-sWof0FDPsutb8=04buUQ@mail.gmail.com> <64329.1342378317@tristatelogic.com> <20120715214823.679eb23d.freebsd@edvax.de>
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On Sun, 15 Jul 2012 21:48:23 +0200 Polytropon articulated: > For example, make an 1:1 copy using dd (or ddrescue or dd_rescue) > of the disk. Work with a copy of that copy. Do not alter the disk. > Then use tools that do the job of recovery (see my list postings > about that topic, they contain a good list of tools you can use > on UNIX). The suggestion of SpinRite is also good, even though > the program is expensive. I'm confident it's worth its money. > But if you are willing to _learn_ (which means to read and to > experiment), the free recovery tools available through the > Ports Collection are really good. If I might interject here, making a copy is obviously imperative; however, it also exposes a severe problem. You are working under the assumption that the copy is actually correct.In fact, it is simply what is being read from the disk at the time of the copy. It may in fact be totally in error. SpinRite will attempt to read a damage sector up to 2000 times and through different algorithms determine what is most likely the correct data. Obviously it cannot do that if it is working with a copy of the drive. It must have access to the original drive. I have to admit that am partial to SpinRite since it saved my ass twice in the past 10 years when no other software could do the job 100%. Hence, if you cannot afford to lose your data, back it up. -- Jerry ♔ Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the Reply-To header. __________________________________________________________________
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