From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.saout.de ([127.0.0.1]) by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id v6OIHRKC37xb for ; Tue, 5 Jun 2012 14:33:02 +0200 (CEST) Received: from condor.dataways.gr (ns1.dataways.gr [213.140.130.1]) by mail.saout.de (Postfix) with ESMTP for ; Tue, 5 Jun 2012 14:33:02 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by condor.dataways.gr (Postfix) with ESMTP id 4B29D50720 for ; Tue, 5 Jun 2012 15:06:08 +0300 (EEST) Received: from condor.dataways.gr ([127.0.0.1]) by localhost (condor [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 24425-10 for ; Tue, 5 Jun 2012 15:06:06 +0300 (EEST) Received: from penguin.dataways.gr (penguin.dataways.gr [213.140.132.15]) by condor.dataways.gr (Postfix) with ESMTP id 8100E50700 for ; Tue, 5 Jun 2012 15:06:06 +0300 (EEST) Received: from [213.140.132.10] (kotama.dataways.gr [213.140.132.10]) (authenticated bits=0) by penguin.dataways.gr (iNODE/1.7.4/MTA-RXTX) with ESMTP id q55C61CB003661 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 5 Jun 2012 15:06:02 +0300 Message-ID: <4FCDF62E.5010701@dataways.gr> Date: Tue, 05 Jun 2012 15:06:06 +0300 From: Tamateas Kostas MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="------------000402070704030005090001" Subject: [dm-crypt] How to manipulate an encrypted partition in a switched_root environment. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de This is a multi-part message in MIME format. --------------000402070704030005090001 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 partitionand 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. --------------000402070704030005090001 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit
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.
--------------000402070704030005090001-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.saout.de ([127.0.0.1]) by localhost (mail.saout.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id gl_4uoZNLW0D for ; Tue, 5 Jun 2012 15:46:24 +0200 (CEST) Received: from mail-ee0-f50.google.com (mail-ee0-f50.google.com [74.125.83.50]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mail.saout.de (Postfix) with ESMTPS for ; Tue, 5 Jun 2012 15:46:23 +0200 (CEST) Received: by eekc13 with SMTP id c13so2126426eek.37 for ; Tue, 05 Jun 2012 06:46:23 -0700 (PDT) Message-ID: <4FCE0DB1.4040601@gmail.com> Date: Tue, 05 Jun 2012 15:46:25 +0200 From: =?ISO-8859-1?Q?Javier_Juan_Mart=EDnez_Cabez=F3n?= MIME-Version: 1.0 References: <4FCDF62E.5010701@dataways.gr> In-Reply-To: <4FCDF62E.5010701@dataways.gr> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [dm-crypt] How to manipulate an encrypted partition in a switched_root environment. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: dm-crypt@saout.de > > Inside the switched_root system, I do e2fsck or dumpe2fs on /dev/sda2, > where sda2 is that encrypted partitionand 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. Since sda2 is encrypted e2fsck cant find superblock and fs data. You must pass e2fsck to the fs unlocked. Look for which device is mounted as rootfs and do e2fsck to this one.