From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: util-linux-owner@vger.kernel.org Received: from plane.gmane.org ([80.91.229.3]:49099 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756051Ab3AIIKD convert rfc822-to-8bit (ORCPT ); Wed, 9 Jan 2013 03:10:03 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Tsqjp-0001jq-QC for util-linux@vger.kernel.org; Wed, 09 Jan 2013 09:10:17 +0100 Received: from netkingxp.iwf.ing.tu-bs.de ([134.169.61.21]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 09 Jan 2013 09:10:17 +0100 Received: from G.Gersdorf by netkingxp.iwf.ing.tu-bs.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 09 Jan 2013 09:10:17 +0100 To: util-linux@vger.kernel.org From: =?ISO-8859-1?Q?G=FCnter_Gersdorf?= Subject: Re: Btrfs: wipe all the superblock [redhat bugzilla 889888] Date: Wed, 09 Jan 2013 09:09:45 +0100 Message-ID: References: <50E9C267.3050302@inwind.it> <50EC822B.1070102@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed In-Reply-To: <50EC822B.1070102@gmail.com> Cc: linux-btrfs@vger.kernel.org Sender: util-linux-owner@vger.kernel.org List-ID: Am 08.01.2013 21:31, schrieb Goffredo Baroncelli: > Hi Günter, > > On 01/08/2013 04:48 PM, Günter Gersdorf wrote: >> Am 06.01.2013 19:28, schrieb Goffredo Baroncelli: >>> >>> You can pull the change from: >>> http://cassiopea.homelinux.net/git/util-linux.git >>> from the branch >>> btrfs-wipefs >>> >> After applying this patch, findfs and blkid didn't find filesystems >> smaller than 256GB, probably because there is no third superblock. > > In my system also the stock "findfs" and "blkid" have the same problem: > ie without my patch these utilities were unable to detect a btrfs > filesystem. > > Could you confirm that ? Without the patch? On my systems, after applying the patch blkid and findfs will not find any btrfs filesystems, even if bigger than 256GB. Günter