Why is sswap command taking forever to complete?

Discussion in 'all things UNIX' started by Warlockz, May 18, 2012.

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  1. Warlockz

    Warlockz Registered Member

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    so I want to erase my swap space and I installed Secure-Delete tools.

    I use the command

    and it tells me

    How is 2 passes insecure on a modern HD?

    I see it in my system monitor and it says "disk sleep" under cpu

    does it ever finish or does it run forever?

    PLEASE HELP?

    EDIT; now it is saying 14% under cpu in sysmonitor? still wondering why its still running? only 1.9GIG for a swap doesnt seem like it should take more then 3 minutes?
     
    Last edited: May 18, 2012
  2. Hungry Man

    Hungry Man Registered Member

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    Doesn't matter how new or old your hard drive is the more writes the harder it is to recover. Two writes isn't a ton.

    No, it makes sense that it's taking a while.
     
  3. Warlockz

    Warlockz Registered Member

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    20 minutes later and it is still running like a hemorrhoid....
     
  4. Hungry Man

    Hungry Man Registered Member

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    I think either your write speeds are pretty low (like 10MB/s) or it's just taking a long time to generate the random data.
     
  5. Warlockz

    Warlockz Registered Member

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    It actually does matter if its an old or modern HD, old HDs require at least 7 passes to be secure, New Modern HDs only require 1 pass pseudorandom to be secure, no they cant recover anything of any value after 1 pass psudorandom on a modern HD!

    Thanks for your input though!
     
  6. Hungry Man

    Hungry Man Registered Member

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    How does it being newer have to do with it?
     
  7. Warlockz

    Warlockz Registered Member

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    Arg it finally finished after forever, how annoying.......windows does this in under 3 minutes...

    Can

    sudo ecryptfs-setup-swap

    be trusted to encrypt my swap, every time I disable swap, it just restarts itself when I turn on my machine, will it startup and encrypt my swap every time i start Linux? and once again can it be trusted?
     
  8. Warlockz

    Warlockz Registered Member

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    Here is some quick info in the link below, or search for more proof if you like? Join a Forensics Forum, their is so much proof around the web it shouldn't even be questioned anymore.

    http://www.anti-forensics.com/disk-wiping-one-pass-is-enough

     
  9. Hungry Man

    Hungry Man Registered Member

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    Doesn't really give much information but I'm also not interested enough to read beyond what you've quoted.

    I assume it has to do with larger drives fitting more information onto sectors.

    edit: And as the new quote you've added shows, that is correct.
     
    Last edited: May 18, 2012
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