Messages in this thread | | | From | "Folkert van Heusden" <> | Subject | RE: reading from devices in RAW mode | Date | Sat, 18 Jan 2003 14:58:53 +0100 |
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I should clarify my question: I do not really mean reading RAW from the device, but I want to read RAW like how its on this, without any error-checking or anything. Like the "CDROMREADRAW"-ioctl for CD-ROMs.
-----Oorspronkelijk bericht----- Van: Rob Wilkens [mailto:robw@optonline.net] Verzonden: zaterdag 18 januari 2003 14:22 Aan: Folkert van Heusden Onderwerp: Re: reading from devices in RAW mode
Just an idea, but try openning "/dev/fd0" for example -as the floppy- directly, then "lseek"ing around and reading/writing as necessary.
Same should work for ide (open /dev/hda, or /dev/hdb, etc.) or scsi (/dev/scd0, etc.).
As per where the useful information is stored on the disk, you'll have to study filesystem code, and there I couldn't help you.
-Rob
On Sat, 2003-01-18 at 08:16, Folkert van Heusden wrote: > Maybe I should've sticked to google (altough it wasn't to helpfull this > time) but > in this mailinglist there are a lot of knowledgeable people, so here's my > question: > for my data-recovery tool I like to read sectors from devices in RAW mode. > found how to do that for cd-rom, but ide/scsi/floppy still leave me > clueless. > Anyone out there who can tell me how to do all of this? (or give me hints on > where to find information that google hides from me) > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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