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( [213.37.137.93]) by mx.google.com with ESMTPS id i39sm656152ugd.75.2008.07.04.07.34.39 (version=SSLv3 cipher=RC4-MD5); Fri, 04 Jul 2008 07:34:40 -0700 (PDT) From: Javier =?ISO-8859-1?Q?Mart=EDn?= To: The development of GRUB 2 In-Reply-To: References: <1215027160.9353.125.camel@localhost> <20080703140211.GA19341@thorin> <1215104875.8123.23.camel@localhost> <20080704000829.GE4074@thorin> <1215135163.26019.44.camel@localhost> <1215167690.26019.78.camel@localhost> <1215172834.26019.97.camel@localhost> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-uFMI4lUGjquKIRLS5FZ7" Date: Fri, 04 Jul 2008 16:34:56 +0200 Message-Id: <1215182096.26019.124.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.22.2 X-detected-kernel: by monty-python.gnu.org: Linux 2.6 (newer, 2) 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: Fri, 04 Jul 2008 14:34:45 -0000 --=-uFMI4lUGjquKIRLS5FZ7 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable El vie, 04-07-2008 a las 22:11 +0800, Bean escribi=C3=B3: > About the flags, no one can guarantee that the incompat bit would > result in an unreadable fs. The journal is a good example. Even with > journal enabled, we can read from it most of the time. The journal: EXT3_FEATURE_COMPAT_HAS_JOURNAL (R/W compatibility) The btree: EXT2_FEATURE_RO_COMPAT_BTREE_DIR (R/O compatibility) Can you grasp the difference between these back-compatible additions to the filesystem and incompatible changes that break readers like the EXT2_FEATURE_INCOMPAT_META_BG lazy inode writing I mentioner earlier? > Note that the > /boot directory is rarely touched, and we sync twice when modifying > it. You may argue that there is still a chance of failure. Well, there > certainly is, but should we disable install to ext3 ? >=20 No, because the journal flag has read-write compatibility: we are guaranteed to be able to mess with the FS with our current driver. --=-uFMI4lUGjquKIRLS5FZ7 Content-Type: application/pgp-signature; name=signature.asc Content-Description: Esta parte del mensaje =?ISO-8859-1?Q?est=E1?= firmada digitalmente -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iQIVAwUASG41EKSl+Fbdeo72AQJU3xAApPn98q5RmOWaRNNxWQ7Bl386ikcw0Thu 75h/2Vk2zGN5BRfE50vOjR0cuDgyLT2uvFBm3pSCF1OqLr34P1oDGcEAhWHaAX8G 4dWlOhYhOt60O9I89GwXpB0oDCefEXo4arYiwTWw3fZatQl7iljksy+iYLgMN6Xk 1+NZUFRaz1tKhZmvxBlLR4FuaHJirHey9RV+Gnq2Z3wYf7a968cJH5EPOJ69hiSo 8zQHZi7Kyd7OrNzpXriTwS7G4Z0dxYOxIH1qReTu0wTOhFo46mzOnGIq3HYCtR5T +eOpjjLt6JNb6kXTsfgU1pfJwvpErHKlOz/JtvsZIJqR5r1u0lDbOsujKTwxGlib J81V2my96nd7Nnx1pBEkzJV6FWlfF8jAa6W7ANz3IUi6eDa4xL3bzLk1q1FFMOgX vzfG1cQnEOnjY1r5sXBR6FyQ/uvmTN6jQ2TmP5zqVosSl/rYX5ef9KkLslqjtPw0 6IuSN+NpG2Gi4o3RwB6VGP9MAe8wXWMX5lBta3Mf7F49TK4UQS2nqk1PYRt6dHcf LkY6wYhgPfqjl+SKOXHe5gwpJwhsofDfNh+VjQqbWPQWmAba/ULTlPxW4hbZZZ5I sj6NRmmlwg4aI6Ze0ym0tuz6os3KV4wCdns4XSGZq9TaE2nPmGE+zzXLC8Jm12kr 3BvcKOjgaxw= =BQYJ -----END PGP SIGNATURE----- --=-uFMI4lUGjquKIRLS5FZ7--