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  • FIRST POST
    • grumpycrab
    • By grumpycrab 11th Jan 18, 8:51 PM
    • 3,570Posts
    • 1,613Thanks
    grumpycrab
    External disk recovery (RAW data)
    • #1
    • 11th Jan 18, 8:51 PM
    External disk recovery (RAW data) 11th Jan 18 at 8:51 PM
    Got a neighbour's 600GB external drive (strange size?) that has been corrupted and displays format as "RAW" - Windows asks to reformat the drive. Looking for a quick (and free if possible) way of data recovery (owner says the original data sources are still intact but this is a challenge for me)

    1. Don't know what the original format was (FAT32 with Vista possibly) and so could convert from RAW to FAT32 but, I guess this will lose data.

    2. The usual "freebies" EasUS and Partition Minitool all want money to do anything useful. (after taking an age to do a first pass scan and then playing the "pay me to recover data" card)

    3. Trying testdisk but gave up when it said it would take 2 days; currently trying ddrescue to make an image which, in theory, will be easier/quicker to recover from; but its going to take 22 hours...and counting. Why are these tools so slow. Any suggestions? (apart from having some patience)
    If you put your general location in your Profile, somebody here may be able to come and help you.
Page 1
    • Neil Jones
    • By Neil Jones 11th Jan 18, 8:57 PM
    • 1,340 Posts
    • 806 Thanks
    Neil Jones
    • #2
    • 11th Jan 18, 8:57 PM
    • #2
    • 11th Jan 18, 8:57 PM
    Easiest thing to do in a situation like this is take the drive out of the caddy and connect it to the motherboard direct, assuming you have a desktop computer.

    If the drive becomes readable, the caddy is shot and needs replacing, you can get replacement caddies for about £15, you just put the new drive in it. The caddies tend to go before the drives themselves.

    All versions of Windows 2000 and later format drives NTFS by default, except for pen drives which are all FAT32 out of the factory.
    • debitcardmayhem
    • By debitcardmayhem 11th Jan 18, 8:59 PM
    • 8,540 Posts
    • 6,449 Thanks
    debitcardmayhem
    • #3
    • 11th Jan 18, 8:59 PM
    • #3
    • 11th Jan 18, 8:59 PM
    Run it through TestDisk/Photorec https://www.cgsecurity.org/wiki/TestDisk

    Whoops ignore me watching TV semi reading and finish my tinny
    Last edited by debitcardmayhem; 11-01-2018 at 9:02 PM.
    • debitcardmayhem
    • By debitcardmayhem 11th Jan 18, 9:10 PM
    • 8,540 Posts
    • 6,449 Thanks
    debitcardmayhem
    • #4
    • 11th Jan 18, 9:10 PM
    • #4
    • 11th Jan 18, 9:10 PM
    I guess
    3. Trying testdisk but gave up when it said it would take 2 days; currently trying ddrescue to make an image which, in theory, will be easier/quicker to recover from; but its going to take 22 hours...and counting. Why are these tools so slow. Any suggestions? (apart from having some patience)
    it's like reading the chinese version of Lord of The Rings and using Google to translate using a mobile phone.
    • forgotmyname
    • By forgotmyname 11th Jan 18, 9:42 PM
    • 27,204 Posts
    • 10,960 Thanks
    forgotmyname
    • #5
    • 11th Jan 18, 9:42 PM
    • #5
    • 11th Jan 18, 9:42 PM
    2 days is nothing for 600GB, going back some years now it took that long to recover raw data off a DVD.

    Dont forget with RAW it needs to read every single bit of data, it looks for the file markers. Imagine looking through a dictionary for every single word with the characters "an" in it.

    The problem is with no filesystem to keep it in order you may find en and the rest of the word has been deleted months ago.
    Lots of deleted files.
    Punctuation, Spelling and Grammar will be used sparingly. Due to rising costs of inflation.

    My contribution to MSE. Other contributions will only be used if they cost me nothing.

    Due to me being a tight git.
    • boatman
    • By boatman 12th Jan 18, 8:17 AM
    • 3,943 Posts
    • 2,807 Thanks
    boatman
    • #6
    • 12th Jan 18, 8:17 AM
    • #6
    • 12th Jan 18, 8:17 AM
    I found partition guru worked on my drive although wasn't specifically in Raw. There is also recovery, worth a look.
    Recovery:
    http://www.eassos.com/eassos-recovery-free.php

    Partition Guru
    http://www.eassos.com/partitionguru-free.php
    or
    https://filehippo.com/download_partitionguru-free/

    More info:
    http://www.eassos.com/blog/how-to-convertchange-raw-file-system-to-ntfsfat-without-data-loss/

    http://www.eassos.com/blog/recover-files-from-raw-hard-drive/
    Last edited by boatman; 12-01-2018 at 8:33 AM. Reason: ii
    • pmartin86
    • By pmartin86 12th Jan 18, 9:44 AM
    • 527 Posts
    • 323 Thanks
    pmartin86
    • #7
    • 12th Jan 18, 9:44 AM
    • #7
    • 12th Jan 18, 9:44 AM
    owner says the original data sources are still intact
    Originally posted by grumpycrab
    Format and mvoe on, life is FAR to short to mess aobut with data recovery at the best of times, especialy when its not needed!
    • grumpycrab
    • By grumpycrab 12th Jan 18, 11:23 AM
    • 3,570 Posts
    • 1,613 Thanks
    grumpycrab
    • #8
    • 12th Jan 18, 11:23 AM
    • #8
    • 12th Jan 18, 11:23 AM
    Format and mvoe on, life is FAR to short to mess aobut with data recovery at the best of times, especialy when its not needed!
    Originally posted by pmartin86
    You're not wrong. And forgotmyname, yes painful looking at every bit of data. Would be nice to know what can be used in the future. Gave up with testdisk (due to operator incompetence) and trying PartitionGuru. Have about 40 sector read errors so thinking it may be best ditch the disk (or will format map them as unusable?).
    If you put your general location in your Profile, somebody here may be able to come and help you.
    • GunJack
    • By GunJack 12th Jan 18, 11:24 AM
    • 10,162 Posts
    • 7,597 Thanks
    GunJack
    • #9
    • 12th Jan 18, 11:24 AM
    • #9
    • 12th Jan 18, 11:24 AM
    before you go too far, try reading the hdd from linux..
    ......Gettin' There, Wherever There is......
    • grumpycrab
    • By grumpycrab 12th Jan 18, 11:29 AM
    • 3,570 Posts
    • 1,613 Thanks
    grumpycrab
    before you go too far, try reading the hdd from linux..
    Originally posted by GunJack
    Was running testdisk under linux but didn't think of just looking at the disk. Will try again (won't be for a while - PartitionGuru is running). At least I've found a spare computer to do this on and I can just leave it to do its thing.
    If you put your general location in your Profile, somebody here may be able to come and help you.
    • pmartin86
    • By pmartin86 13th Jan 18, 10:34 AM
    • 527 Posts
    • 323 Thanks
    pmartin86
    You're not wrong. And forgotmyname, yes painful looking at every bit of data. Would be nice to know what can be used in the future. Gave up with testdisk (due to operator incompetence) and trying PartitionGuru. Have about 40 sector read errors so thinking it may be best ditch the disk (or will format map them as unusable?).
    Originally posted by grumpycrab
    If you are insistant on punishing yourself, winfowd based Iv've had success with Recuva in the past - Recovered about 65% of a drive that was "accidentatly formatted and imaged"

    https://www.piriform.com/recuva

    If you need to go deeper, a live boot of GParted, a lot of reading and a lot of swearing has also helped me out of a tight spot (Door entry system with 24 individual doors, 70+ users and roughly 55 different access profiles stored/run off an 8 year old machine that doubled up as the receptionist working machine with NO backup...that was a fun day!

    https://gparted.org/

    https://gparted.org/display-doc.php%3Fname%3Dhelp-manual


    Edit: Forgot to mention, if you havn't allready, try running a CHKDISk with the /X /F /R switches - Be surprised sometime how much it can recover. - More infor here:

    https://technet.microsoft.com/en-us/library/cc730714(v=ws.11).aspx
    Last edited by pmartin86; 13-01-2018 at 10:37 AM.
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