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  1. #1
    Join Date
    Feb 2006
    Posts
    166

    How To Remove Disk Encryption From a partition ( LUKS passphrase issue )

    Hello, I am really getting irritated with trying to find an answer to this one. I was putting the last touches on a DELL laptop for my sister after installing Fedora 10 Beta. I spent days getting everything the way I want it.

    But now, I remembered that I chose disk encryption during setup. What I really want is to get rid of the encryption pass-phrase so that my sister doesn't have to deal with authenticating twice once in LUKS on bootup and the other in GDM. I have been reading the cryptsetup man page. I don't see a single option that would allow me to unencrypt the disk or at least have it not prompt me for a pass-phrase.

    If I try to remove the current pass-phrase, it goes like this:

    [root@TBox ~]# cryptsetup luksRemoveKey /dev/sda2
    Enter LUKS passphrase to be deleted:
    key slot 0 selected for deletion.

    WARNING!
    ========
    This is the last keyslot. Device will become unusable after purging this key.

    Are you sure? (Type uppercase yes):

    OK I get that but what do I do then? I really don't want to format, it would take me ages to get back here after all the packages I have installed.

  2. #2
    Join Date
    Nov 2008
    Posts
    10
    Hi there,

    I would also like to know if and how is it possible to remove encryption from a LUKS protected partition.
    Google doesnt help much in this topic (points here mostly).

  3. #3
    Join Date
    Nov 2008
    Posts
    10
    As far as I my current knowledge goes right now, it seems one have to backup the files on the partition, nuke it, create new unencrypted partition and restore files from the backup.

  4. #4
    Join Date
    Jun 2008
    Posts
    1,312
    Quote Originally Posted by misiu_mp
    Hi there,

    I would also like to know if and how is it possible to remove encryption from a LUKS protected partition.
    Google doesnt help much in this topic (points here mostly).
    as far as i know... it's not possible to decrypt the whole disk on-the-fly
    copy the files somewhere, then format your disk, and copy all files back.

    bye!!

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