[dm-crypt] [arno at wagner.name: Re: LUKS GPT GUID]

Arno Wagner arno at wagner.name
Wed Jan 29 18:08:22 CET 2014


On Wed, Jan 29, 2014 at 14:47:05 CET, Christoph Anton Mitterer wrote:
> 
> On Tue, 2014-01-28 at 17:58 +0100, Milan Broz wrote:
> > On 01/27/2014 10:12 PM, Christoph Anton Mitterer wrote:
> > > On Mon, 2014-01-27 at 21:41 +0100, Milan Broz wrote:
> > >> "Encrypted disk partition (LUKS, dm-crypt, TrueCrypt, loop-AES or similar)"
> > >> With GUID generated (without doubt by properly seeded Christoph's RNG ;-)
> > >> ca7d7ccb-63ed-4c53-861c-1742536059cc
> > > 
> > > I think at most we should say:
> > > LUKS or rather even 
> > > LUKS = ca7d7ccb-63ed-4c53-861c-1742536059cc
> > > dm-crypt = 7ffec5c9-2d00-49b7-8941-3ea10a5586b7
> > > ... but especially not mix TC and loop-AES together, since dm-crypt is
> > > not the upstream for them...
> > 
> > My idea was just to use one generic encrypted partition marking, whatever
> > format it is...
> Well I don't like the idea of having such kind of wildcard/group types a
> lot... since it pretty much contradicts the idea of partition types,
> IMHO.
> Having something like "Linux Filesystem" is pretty much useless, since
> then again you don't know what it actually is (even though that is of
> course just a hint, and no guarantee).
> 
> > But really, who cares? :)
> Well I think that especially for plain dm-crypt it could be helpful for
> tools/etc. to recognise the partition as an encrypted one, which is
> otherwise not really possible.
> 
> 
> I pushed forward these "definitions" to:
> - English Wikipedia: http://en.wikipedia.org/w/index.php?title=GUID_Partition_Table&diff=592830774&oldid=592521574
> - German Wikipedia:  http://de.wikipedia.org/w/index.php?title=GUID_Partition_Table&diff=126967660&oldid=126000138
> - GPT fdisk:         http://sourceforge.net/mailarchive/message.php?msg_id=31895963
> - util-linux fdisk:  http://thread.gmane.org/gmane.linux.utilities.util-linux-ng/8436
> - GNU parted:        <wrote to their list but either it's broken or I don't know...>
> 
> Arno, could you add that perhaps to the FAQ? Stating though that right
> now it's not really used and probably never will.

Good idea. Maybe I should add a "Technical Details" section to 
the FAQ. This could be the start and some things, like the on-disk
format, would be better grouped there anyways. 

Will think about it on the weekend.

Arno 
 
> 
> Cheers,
> Chris.
> 



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-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno at wagner.name
GnuPG: ID: CB5D9718  FP: 12D6 C03B 1B30 33BB 13CF  B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -  Plato

----- End forwarded message -----

-- 
Arno Wagner,     Dr. sc. techn., Dipl. Inform.,    Email: arno at wagner.name
GnuPG: ID: CB5D9718  FP: 12D6 C03B 1B30 33BB 13CF  B774 E35C 5FA1 CB5D 9718
----
A good decision is based on knowledge and not on numbers. -  Plato


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