From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaron Williams Date: Thu, 29 Sep 2011 23:46:36 -0700 Subject: [U-Boot] U-Boot: using nand write to flash an ubi image, ubi part fails In-Reply-To: <1317353613.60659.YahooMailClassic@web160608.mail.bf1.yahoo.com> References: <1317353613.60659.YahooMailClassic@web160608.mail.bf1.yahoo.com> Message-ID: <4E8565CC.5060201@cavium.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Thanks. I finally found the problem on our end and now I have ubifs working beautifully. -Aaron On 09/29/2011 08:33 PM, Lars Michael wrote: > --- On Thu, 29/9/11, Aaron Williams wrote: >> From: Aaron Williams >> Subject: Re: [U-Boot] U-Boot: using nand write to flash an ubi image, ubi part fails >> To: u-boot at lists.denx.de >> Cc: "Lars Michael" >> Date: Thursday, 29 September, 2011, 4:11 >> Hi Lars, >> >> Were you ever successful in getting UBI to work in U-Boot? >> I am in a similar >> boat. I have UBI working beautifully in Linux (2.6.32.27) >> but so far I've had >> no luck in U-Boot. >> >> -Aaron > Hi Aaron, > > Good question, I am not able to write a ubi image (created by ubinize) > and then attatch to it from U-Boot. I found that I need the free space > fixup patch. My U-Boot is rather old (2009.08) and I can not easily > apply that patch due to too many other changes. So for now, I must > write the image from Linux, do the fixup and then U-Boot is able to > attach. > > Regards, > - Lars > >> On Monday, July 18, 2011 02:29:08 AM Lars Michael wrote: >>> Hello Ben, >>> >>> --- On Wed, 1/6/11, Ben Gardiner >> wrote: >>>>> Using mkfs.ubifs and ubinize I have created >> an image >>>> with 5 volumes. In Linux I could flash it using >> "ubiformat >>>> /dev/mtd1 -f /root/ubi.img" and attach it using >> "ubiattach >>>> /dev/ubi_ctrl -m 1". It worked. >>>> >>>>> In production I would prefer to write the >> image from >>>> U-Boot. So in U-Boot I used "nand erase" then >> "nand write" >>>> to flash the image. Then I want to attach by "ubi >> part" >>>> command - but this fails: "UBI error: ubi_init: >> UBI error: >>>> cannot initialize UBI, error -17" >>>> >>>>> [...] >>>>> I realize that the U-Boot 'nand erase' does >> not >>>> preserve the erase counters. So what would be the >> correct >>>> way to erase and write in U-Boot? And why is the >> ubiformat >>>> not able to correct the problems? >>>> >>>> It's true that the ECs are not preserved. But >> it's also >>>> true that >>>> trailing pages of 0xff are not trimmed either. >> You >>>> definitely need to >>>> drop trailing 0xff pages when writing ubinized >> images >>>> containing UBIFS >>>> volumes. To do this you can use either the new >> 'nand write' >>>> variant, >>>> .trimffs [1] which is currently patches that have >> been >>>> Acked. Or you >>>> can use the free-space-fixup feature which is >> available in >>>> the >>>> ubifs-2.6 tree and requires that you use a >> mkfs.ubifs built >>>> from the >>>> the mtd-utils tree. >>> Ok, I have updated my mtd-utils and recompiled the >> mkfs.ubifs to get >>> support for the free-space-fixup feature. Next I have >> pulled >>> all ubi updates from the 2.6.29 backport tree which >> gave med 154 patches >>> including the fixup. >>> >>> Now I can build the image, ubiformat, ubiattach and >> mount with success. >>> After a reboot I can ubiattach and mount with >> success. >>> Next step is to get it to work in U-Boot too. >>> >>> Thanks and regards, >>> - Lars >>> >>> _______________________________________________ >>> U-Boot mailing list >>> U-Boot at lists.denx.de >>> http://lists.denx.de/mailman/listinfo/u-boot >> -- >> Aaron Williams >> (408) 943-7198 >>