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problems restoring old tape from 1993

  • 18-07-2007 11:44PM
    #1
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 96,136 Mod ✭✭✭✭


    Guessing it was backed up with sun back then, using knoppix because I can't install on the only machine that I've matching cables for.

    mt reads the tape but doesn't like the format, might be one of the switches I'll read up, so went on to dd instead

    [php]dd if=/dev/st1 of=rawdump bs=512[/php]
    runs for a while but stops, I'm only getting a few MB

    [php]dd if=/dev/st1 of=rawdump2 bs=512 skip=10000[/php]
    It'll do a bit more if you skip past the previously copied sectors

    The rawdump file is uncompressed , I can see folder names and contents of config files. At this stage I want to pull the data off the tape and worry about extracting the files later.


Comments

  • #2
    Khannie
    Registered Users, Registered Users 2 Posts: 37,485 ✭✭✭✭Khannie


    you might try ddrescue (the gnu version. there is a non-gnu dd_rescue but it's not as good). It basically works the same way as dd, but has decent error correction built into it. Might be slow over tape, but I'm guessing that's the least of your worries. :)


  • #3
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 96,136 Mod ✭✭✭✭Capt'n Midnight


    ddrescue

    D'oh :o Forgot that


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