From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with archive (Exim 4.43) id 1KDiL0-0002DV-Gh for mharc-grub-devel@gnu.org; Tue, 01 Jul 2008 12:04:14 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KDiKz-0002CC-5K for grub-devel@gnu.org; Tue, 01 Jul 2008 12:04:13 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KDiKx-0002Au-Jq for grub-devel@gnu.org; Tue, 01 Jul 2008 12:04:12 -0400 Received: from [199.232.76.173] (port=32868 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KDiKx-0002Al-C9 for grub-devel@gnu.org; Tue, 01 Jul 2008 12:04:11 -0400 Received: from aybabtu.com ([69.60.117.155]:48685) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1KDiKw-0006tP-SE for grub-devel@gnu.org; Tue, 01 Jul 2008 12:04:11 -0400 Received: from [192.168.10.10] (helo=thorin) by aybabtu.com with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.69) (envelope-from ) id 1KDiHE-0003eE-6e for grub-devel@gnu.org; Tue, 01 Jul 2008 18:00:20 +0200 Received: from rmh by thorin with local (Exim 4.63) (envelope-from ) id 1KDiKN-0001v5-Rb for grub-devel@gnu.org; Tue, 01 Jul 2008 18:03:35 +0200 Date: Tue, 1 Jul 2008 18:03:35 +0200 From: Robert Millan To: The development of GRUB 2 Message-ID: <20080701160335.GE6985@thorin> References: <889404A5CBB14C15B464EDBB1AE338A8@fz> <1214765178.6942.2.camel@localhost> <1214769230.6942.11.camel@localhost> <20080629211957.GD24784@thorin> <1214794971.9353.32.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1214794971.9353.32.camel@localhost> Organization: free as in freedom X-Message-Flag: Worried about Outlook viruses? Switch to Thunderbird! www.mozilla.com/thunderbird X-Debbugs-No-Ack: true User-Agent: Mutt/1.5.13 (2006-08-11) X-detected-kernel: by monty-python.gnu.org: Genre and OS details not recognized. Subject: Re: grub-probe detects ext4 wronly as ext2 X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: The development of GRUB 2 List-Id: The development of GRUB 2 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Jul 2008 16:04:13 -0000 On Mon, Jun 30, 2008 at 05:02:50AM +0200, Javier Martín wrote: > > Here is the patch I was talking about, one step farther than I had first > envisioned, i.e. not just about ext4 but an (solid?) implementation of > "xenophobia" in the filesystem driver. This code checks the superblock > backwards-incompatible features bitfield against a predefined set of > features that we do support, and refuses to mount the filesystem if > there are any that we don't. In particular, this makes the driver reject > ext4 filesystems with the "extents" option enabled. I like the idea, but it sounds a bit scary. Is there possibility that GRUB (not grub-probe) refuses to access a filesystem that would otherwise be perfectly usable? -- Robert Millan I know my rights; I want my phone call! What good is a phone call… if you are unable to speak? (as seen on /.)