Locked out of Ubuntu

Discussion in 'OT Technology' started by Kingfisher, Apr 13, 2006.

  1. Kingfisher

    Kingfisher Keepin L's lit

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    Hey guys, I have somehow managed to forget my user/pass to my ubuntu OS. I am dual booting with xP and I was wondering, if I reinstall Ubuntu, will it somehow mess up my bootloader and screw up my windows os and/or bootloading file (I forget what they call it)? I just have to remember to not select to install it on the partition my windows is on, correct? Is it safe to do so?
     
  2. Aimless

    Aimless Resident drunkey

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    You should just able to boot into run level 1. What bootloader are you using?
     
  3. CyberBullets

    CyberBullets I reach to the sky, and call out your name. If I c

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    assuming he didnt lock out single user mode. i always do on my boot loaders...
     
  4. SLED

    SLED build an idiot proof device and someone else will

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    download knoppix, boot to the cd, then delete root password
     
  5. deusexaethera

    deusexaethera OT Supporter

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    Could it be that Linux's famed uncrackable security is so easy to circumvent?
     
  6. Peyomp

    Peyomp New Member

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    If you have physical access to a machine, and the filesystem is not encrypted, then no operating system is secure.
     
  7. CyberBullets

    CyberBullets I reach to the sky, and call out your name. If I c

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    :werd:

    physical access = easy access.
     
  8. Penguin Man

    Penguin Man Protect Your Digital Liberties

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    Yep. It doesn't matter what the OS is, if you can boot to a LiveCD, nothing is secure.
     
  9. Joe_Cool

    Joe_Cool Never trust a woman or a government. Moderator

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    Nobody ever claimed that linux was impervious. Anyone who has physical access to the machine can do pretty much anything. In any operating system.

    Now breaking in over a network.... that's a different story.
     
  10. Peyomp

    Peyomp New Member

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    But this wouldn't be true if you use an encrypted filesystem. Anyone ever actually done this?
     
  11. Joe_Cool

    Joe_Cool Never trust a woman or a government. Moderator

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    It's slightly less easy, but still easy depending on your resources. Hardware-based keystroke logger, for example.

    And if you have physical access to the person who knows the password, you can just beat on him for a while until he gives it up.
     
  12. Kingfisher

    Kingfisher Keepin L's lit

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    I'm using the loader that came with Ubuntu, GRUB Loader i forgot what vers :dunno:
     
  13. Penguin Man

    Penguin Man Protect Your Digital Liberties

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    I have some friends who have. I've heard mixed reviews :dunno:
     
  14. P07r0457

    P07r0457 New Member

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    It has remained common knowledge that if a user has physical access to a machine to choose what volume is booted to, and to actually reset the machine, then you're fucked, anyway.
     
  15. Aimless

    Aimless Resident drunkey

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    I doesn't seem like he did on his own. I guess it depends on whether Ubuntu does by default or not :dunno:
     
  16. Aimless

    Aimless Resident drunkey

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    I access my linux boxes remotely so I haven't done anything with GRUB in years. Someone tell him how to do it!

    Press escape when GRUB comes up, and somehow you'll get to customize what it boots. At the end of one of the strings should be a 3. Change it to a 1.

    Close enough?
     

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