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Thread: how do I encrypt / ??

  1. #1
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    how do I encrypt / ??

    Hello, I have ubuntu 8.04 working lovely. I have 4 partitions:

    /
    swap
    /fat32
    /windowsXP

    I use the fat32 drive to hold mp3s so I can play them from both Linux and Windows.

    How do I go about encrypting my ext3 / and swap partitions?

    Is it possible to encrypt the fat32 partition in a way that windows can read, if I give it the correct password?

    I really don't want to have to re-install everything.

    Thanks in advance for any help
    Last edited by zenkaon; May 15th, 2008 at 02:49 PM.
    In a world without walls and fences, who needs windows and gates.

  2. #2
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    Re: how do I encrypt / ??

    I'm pretty sure that you can't encrypt / without switching to an encrypted filesystem or something....like Encrypted LVM during installation.

    I mean, if you encrypted /, how would the machine boot?

    Granted, I've never messed with encryption much, so I'm just conjecturing.

  3. #3
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    Re: how do I encrypt / ??

    To encrypt the whole disk, you need to create a small, separate partition for the /boot directory. GRUB can read from that, then ask for your LUKS passphrase to read the encrypted volume.

    The guide that I used:
    http://users.piuha.net/martti/comp/u...cryptolvm.html
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  4. #4
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    Re: how do I encrypt / ??

    If you just want to encrypt specific files/folders, you could look at truecrypt, which is cross platform(OS X/Windows/Linux) and even has full disk encryption for windows (but not linux).
    http://www.truecrypt.org/

  5. #5
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    Re: how do I encrypt / ??

    Quote Originally Posted by zenkaon View Post
    How do I go about encrypting my ext3 / and swap partitions?
    Easiest to encrypt upon installation...

    Quote Originally Posted by zenkaon View Post
    Is it possible to encrypt the fat32 partition in a way that windows can read, if I give it the correct password?
    Yes, use truecrypt... and maybe even use ntfs instead of fat32

    Quote Originally Posted by zenkaon View Post
    I really don't want to have to re-install everything.
    With full encryption you'll have to...

  6. #6
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    Re: how do I encrypt / ??

    forgive me for being as blind as a bat, where can I find a url for a copy of the Alternative ubuntu 8.04 cd iso???

    I'm actually writing this from the regular download ubutnu 8.04 live cd - it doesn't seem to have encryption install support.
    In a world without walls and fences, who needs windows and gates.

  7. #7
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    Re: how do I encrypt / ??

    http://releases.ubuntu.com/8.04/ubun...rnate-i386.iso
    http://releases.ubuntu.com/8.04/ubun...86.iso.torrent

    Code:
    166991d61e7c79a452b604f0d25d07f9 *ubuntu-8.04-alternate-i386.iso
    I recommend downloading it via torrent.
    "Security lies within the user of who runs the system. Think smart, live safe." - Dr Small
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  8. #8
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    Re: how do I encrypt / ??

    Quote Originally Posted by Dr Small View Post
    I recommend downloading it via torrent.
    So do I as it will be automatically hash checked and hence you are sure that the downloaded .iso is ok.

  9. #9
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    Re: how do I encrypt / ??

    cheers guys,

    downloading via torrent now, will stay as a seeder for a good while.

    Looking forward to a nice set of encrypted PCs.
    In a world without walls and fences, who needs windows and gates.

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