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Date: Mon, 06 Sep 2010 14:57:23 +0200
From: Milan Broz <mbroz@redhat.com>
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Subject: Re: [dm-crypt] wrong partition type with blkid command ?
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To: Aaron Lewis <aaron.lewis1989@gmail.com>
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On 09/06/2010 02:33 PM, Aaron Lewis wrote:
> 	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

IF it is LUKS and not plain crypto  - "blkid -u crypto -p /dev/sda8" prints LUKS?

If so, that's probably old bug - both signarures are present (cryptsetup did not wipe part of signature)

read http://code.google.com/p/cryptsetup/wiki/FrequentlyAskedQuestions#3._Common_Problems
"blkid" sees a LUKS UUID and an ext2/swap UUID on the same device. What is wrong?"


Milan