How to manipulate an encrypted partition in a switched_root environment.

Tamateas Kostas <k.tamateas@xxxxxxxxxxx> · Tue, 05 Jun 2012 15:06:06 +0300



    Hello evertybody. I
        am using cryptsetup to work with encryption. Everything is ok
        and working nice. However I have an issue and I don't know how
        to solve it. Well, the kernel is loaded, same for the ramdisk.
        In the ramdisk I use cryptsetup luksOpen blabla.. and
        then I use mount /dev/mapper/enc /media/root. Then I
        switch_root to /media/root. Everything works normally.

        
    Inside the switched_root
        system, I do e2fsck or dumpe2fs on /dev/sda2, where sda2 is that
        encrypted partition and it returns: bad
        superblock and stuff like this. In the ramdisk I had
        the /dev/mapper/enc device, but in switched_root system I don't
        have it. I only have /dev/mapper/control. 

        
      So can anyone tell me how I can manipulate my sda2
        device in the switched_root environment ?

        
        Thanks, Kostas.

      
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