Hi Alex, On Wednesday 07 March 2012 16:14:28 Alex Zeffertt wrote: > On 7 March 2012 14:42, Alex Zeffertt <azeffe...@cambridgesys.com> wrote: > > Hi u-booters, > > > > I have a short script in my u-boot environment which chooses which of > > two ubifs partitions to boot > > by attempting to read a release file in each one. > > > > Unfortunately, after an unclean shutdown sometimes the ubifsmount > > fails. (By "unclean shutdown" > > I mean that the board was power cycled while doing some low bandwidth > > logging.) > > > > The strange thing is that Linux has no problem mounting the partition > > as its root filesystem. This is > > very confusing because it looks like the ubifs implementation in > > u-boot is just a copy of the one in Linux.
Correct. The U-Boot version is mainly a copy of the Linux version. With minor changes. But its based on an older Linux version. Many changes have gone into the UBI Linux code. > > Has anyone else seen this problem? > > > > Regards, > > > > Alex > > > > PS My kernel is linux-3.0.0/armv5tel and the full u-boot trace is below: > >> U-Boot 2011.06 (Feb 10 2012 - 12:29:06) > >> OpenRD-Base > >> SoC: Kirkwood 88F6281_A1 > >> DRAM: 128 MiB > >> NAND: 512 MiB > >> *** Warning - bad CRC, using default environment > >> In: serial > >> Out: serial > >> Err: serial > >> Net: egiga0 > >> 88E6351 Initialized on egiga0 > >> Hit any key to stop autoboot: 0 > >> Creating 1 MTD partitions on "nand0": > >> 0x000001000000-0x000010000000 : "mtd=2" > >> UBI: attaching mtd1 to ubi0 > >> UBI: physical eraseblock size: 131072 bytes (128 KiB) > >> UBI: logical eraseblock size: 126976 bytes > >> UBI: smallest flash I/O unit: 2048 > >> UBI: sub-page size: 512 > >> UBI: VID header offset: 2048 (aligned 2048) > >> UBI: data offset: 4096 > >> UBI: attached mtd1 to ubi0 > >> UBI: MTD device name: "mtd=2" > >> UBI: MTD device size: 240 MiB > >> UBI: number of good PEBs: 1913 > >> UBI: number of bad PEBs: 7 > >> UBI: max. allowed volumes: 128 > >> UBI: wear-leveling threshold: 4096 > >> UBI: number of internal volumes: 1 > >> UBI: number of user volumes: 1 > >> UBI: available PEBs: 0 > >> UBI: total number of reserved PEBs: 1913 > >> UBI: number of PEBs reserved for bad PEB handling: 19 > >> UBI: max/mean erase counter: 7/1 > >> UBIFS: recovery needed > >> Error reading superblock on volume 'ubi:rootfs'! > >> UBI: mtd1 is detached from ubi0 > > I've been comparing the linux and u-boot implementations, and it looks > like the following fix is in the kernel > but not in u-boot. I don't really understand it, but it looks like a > candidate. Might porting this change to > u-boot fix the issue? Hard to tell. Might be worth a try, if its not too complicated. It would be great if you could report the outcome of this. And best to send this patch to the list as well. Thanks, Stefan -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
