From: Arno Wagner <arno@wagner.name>
To: dm-crypt@saout.de
Subject: Re: [dm-crypt] wrong partition type with blkid command ?
Date: Mon, 6 Sep 2010 14:48:13 +0200 [thread overview]
Message-ID: <20100906124812.GA13044@tansi.org> (raw)
In-Reply-To: <201009062034.05071.aaron.lewis1989@gmail.com>
If you create a raw dm-crypt partition with cryptsetup, there
is no valiadation at all, i.e. you can do this on a non-encrypted
partition and not get an error message.
Ir is extremely unlikely for encrypted data to just match the
magic number, so something else is likely wrong here.
Arno
On Mon, Sep 06, 2010 at 08:33:58PM +0800, Aaron Lewis wrote:
> Hi,
> blkid told me the type of an encrypted partition is "ext4" , while
> cryptsetup works fine.
>
> * blkid /dev/sda8
> /dev/sda8: LABEL="ROOT" UUID="92d7eb3f-617d-4d63-8d1c-86b99ddeb5e4"
> TYPE="ext4"
>
> ( TYPE should be crypto_LUKS )
>
> I've went through util-linux's source code , all magic code are defined here:
> shlibs/blkid/src/superblocks/luks.c
>
> I should not modify partition directly , should be some tools could help ,
> anyone know ?
>
> Many thanks !
>
> --
> Best Regards,
> Aaron Lewis - PGP: 0x4A6D32A0
> FingerPrint EA63 26B2 6C52 72EA A4A5 EB6B BDFE 35B0 4A6D 32A0
> irc: A4R0NL3WI5 on freenode
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--
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name
GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F
----
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"news" is "something that hardly ever happens." -- Bruce Schneier
next prev parent reply other threads:[~2010-09-06 12:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-06 12:33 [dm-crypt] wrong partition type with blkid command ? Aaron Lewis
2010-09-06 12:48 ` Arno Wagner [this message]
2010-09-06 12:57 ` Aaron Lewis
2010-09-06 12:57 ` Milan Broz
2010-09-06 13:08 ` [dm-crypt] [SOLVE] " Aaron Lewis
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