From mboxrd@z Thu Jan 1 00:00:00 1970 From: Woody Wu Date: Tue, 13 Aug 2013 22:08:40 +0800 Subject: [Buildroot] ubifs rootfs attached error In-Reply-To: <520A36FB.80403@gmail.com> References: <20130813130443.GA3676@zuhnb712> <520A36FB.80403@gmail.com> Message-ID: <20130813140840.GA5063@zuhnb712> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net On Tue, Aug 13, 2013 at 03:39:07PM +0200, Stefan Peter wrote: > Dear Woody Wu, > > On 13.08.2013 15:04, Woody Wu wrote: > > Hi, > ... > > Firstly, below are the kernel error messages: > > > > ------------------------------------------------------------------ > > NAND_ECC_NONE selected by board driver. This is not recommended !! > > Modern flash chips actually rely on specific forms of cyclic redundancy > checks in order to be able to correct for bit errors in NAND flash. > Without using the proper CRC algorithm, you can never be sure to be able > to read from the flash what you have written to it. Another hint at this > problem are the "Bad eraseblock" messages that follow. > > Check your kernel configuration and the documentation of your target for > the proper ECC settings for the NAND flash. Stefan, thanks for the hints. Yes, my kernel configuration disalbed the NAND ECC. I like to study on that. But, do you think this is reason why my ubifs did not get attached? Thanks. > > _______________________________________________ > buildroot mailing list > buildroot at busybox.net > http://lists.busybox.net/mailman/listinfo/buildroot -- I can't go back to yesterday - because I was a different person then