[NBLUG/talk] Crypt Filesystems

[Walter Hansen]

> Walter Hansen wrote:
>>>> Ack. I was going through the example 2 Partition backed loop with gpg
>>>> encrypted key file and got "/dev/loop3: No such file or directory" did
>>>> I
>>>> miss something?
>>>>
>>> Let's get some context here?
>>>
>>> Can you include what you did to build and install loop-aes? What are
>>> the
>>> steps that led you to this error?
>>>
>>> Regards,
>>> Jacob
>>
>> Sure.
>> I used apt-get to install loop-aes-utils and module-assistant (already
>> installed)
>> I used module-assistant to install loop-aes and aes-ciphers-source
>> I had to use the fakesource as it said my source was only headers.
>>
>> from there I attemtped to follow these instructions:
>> <begin>
>> Create 65 random encryption keys and encrypt those keys using gpg.
>> Reading
>> from /dev/random may take indefinitely long if kernel's random entropy
>> pool
>> is empty. If that happens, do some other work on some other console (use
>> keyboard, mouse and disks). Use of gpg encrypted key file depends on
>> encrypted swap.
>>
>>     head -c 2925 /dev/random | uuencode -m - | head -n 66 | tail -n 65 \
>>         | gpg --symmetric -a >/a/usbstick/keyfile.gpg
>>
>> Fill the partition with random looking data. "dd" command may take a
>> while
>> to execute if partition is large.
>>
>>     head -c 15 /dev/urandom | uuencode -m - | head -n 2 | tail -n 1 \
>>         | losetup -p 0 -e AES128 /dev/loop3 /dev/hda666
>>     dd if=/dev/zero of=/dev/loop3 bs=4k conv=notrunc 2>/dev/null
>>     losetup -d /dev/loop3
>> <end>
>>
>> but on the second head... line entry I get the /dev/loop does not exist.
>> On looking I don't have any /dev/loopX, but I do have a /dev/loop/0
>> which
>> I assume must be something else as it doesn't seem to work ethier.
>>
>
>
> Surely these aren't the commands that you executed right? /dev/hda666 is
> unlikely to be a valid block device ;-)
>
> Do you have the loop module loaded? I'm a bit confused by the
> /dev/loop/0 can you give me some kernel information? uname -a? etc?
>
> Perhaps come by #nblug on irc?
>
>
> Regards,
> Jacob
>
>
> _______________________________________________
> talk mailing list
> talk at nblug.org
> http://nblug.org/cgi-bin/mailman/listinfo/talk
>
>


I'm there, but nobody else is awake...