From rick@efn.org Tue Apr 22 01:00:16 2008 Received: from samwise.efn.org ([12.33.21.33]) by stoneboat.aleph1.co.uk with esmtp (Exim 4.63) (envelope-from ) id 1Jo5vY-0007Wm-R1 for yaffs@stoneboat.aleph1.co.uk; Tue, 22 Apr 2008 01:00:16 +0100 Received: from efn.org (c-67-171-210-97.hsd1.or.comcast.net [67.171.210.97]) by samwise.efn.org (Postfix) with ESMTP id 6AF17170134 for ; Mon, 21 Apr 2008 17:00:00 -0700 (PDT) Received: from rick by efn.org with local (Exim 4.69) (envelope-from ) id 1Jo5vU-0005UB-Js for yaffs@stoneboat.aleph1.co.uk; Mon, 21 Apr 2008 17:00:00 -0700 To: yaffs@stoneboat.aleph1.co.uk Message-Id: From: Rick Bronson Date: Mon, 21 Apr 2008 17:00:00 -0700 X-SA-Exim-Connect-IP: 12.33.21.33 X-SA-Exim-Mail-From: rick@efn.org X-Spam-Checker-Version: SpamAssassin 3.2.3 (2007-08-08) on stoneboat.aleph1.co.uk X-Spam-Level: X-Spam-Status: No, score=-2.5 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS, SPF_PASS autolearn=ham version=3.2.3 X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on stoneboat.aleph1.co.uk) Subject: [Yaffs] nandwrite/nanddump question X-BeenThere: yaffs@lists.aleph1.co.uk X-Mailman-Version: 2.1.9 Precedence: list Reply-To: rick@efn.org List-Id: Discussion of YAFFS NAND flash filesystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Apr 2008 00:00:18 -0000 Hi, I have a partition that has some bad blocks and would like to dump it to a file (including the bad block markings), then write this same file to a good partition of the same size/type along with the bad blocks. What I'm looking for is a byte-for-byte copy. Is this possible with nandwrite/nanddump? I tried it but it doesn't seem to work that way. Or maybe I don't have the right options ./nandwrite -f -y -n -o /dev/mtd2 /root/ryan.fs2.bin # done on bad NAND ./nanddump -i /dev/mtd2 > /root/ryan.fs2.test.bin # done on good NAND cmp /root/ryan.fs2.bin /root/ryan.fs2.test.bin # different! Thanks very much for any help. Rick Bronson ------------------------------------------------------------------ Here are my Linux 2.6.22 specifics: yaffs2 version: yaffs2-ian-20070523.tgz NAND chip (512/16): Flash chip found: Manufacturer ID: 0x98, Chip ID: 0x75 (Toshiba TC58256FT/DC) 1 flash chips found. Total nand_chip size: 32 MB kernel: Linux acq 2.6.22-rc1 #170 Thu Jul 5 13:58:14 PDT 2007 armv4tl GNU/Linux .config file: CONFIG_YAFFS_FS=y CONFIG_YAFFS_YAFFS1=y CONFIG_YAFFS_9BYTE_TAGS=y CONFIG_YAFFS_YAFFS2=y CONFIG_YAFFS_AUTO_YAFFS2=y # CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS=10 # CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set # CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED is not set