On Tuesday 29 November 2011 01:11:11 Brilliantov Kirill Vladimirovich wrote:
> Hello!
> I work with TexasInstrumets DM365 processor, ST NAND512R3A2DZA6
> NAND-flash, linux-2.6.18_pro500 from TexasInstrumets SDK and BusyBox
> 1.18.4.
>
> Usualy I work with NFS filesystem and when I need create standalone
> device I write system on NAND.
> My steps for writing system on NAND:
> 1. create filesystem
> ~ # ./flash_eraseall /dev/mtd3
> Erasing 16 Kibyte @ 1ffc000 -- 99 % complete.
> 2. mount filesystem
> ~ # mount -t yaffs /dev/mtdblock3 /mnt
> yaffs: dev is 32505859 name is "mtdblock3"
> yaffs: passed flags ""
> yaffs: Attempting MTD mount on 31.3, "mtdblock3"
> yaffs_read_super: isCheckpointed 0
> 3. unpack system
> ~ # cd /mnt && tar xf /root/system.tar
> 4. check
> /mnt # ls -F /mnt
> bin/        home/       lost+found/ proc/       sys/        var/
> dev/        lib/        mnt/        root/       tmp/
> etc/        linuxrc@    opt/        sbin/       usr/
>
> Usually I umount /dev/mtdblock3 and reboot device, but I found little
> problem - some files is truncated after umount.
> As sample, before umount:
> ~ # wc -cmlw /etc/init.d/modules.sh
>         67       180      1467      1467 /etc/init.d/modules.sh
> ~ # wc -cmlw /mnt/etc/init.d/modules.sh
>         67       180      1467      1467 /mnt/etc/init.d/modules.sh
>
> ~ # umount /mnt
> save exit: isCheckpointed 0
> save exit: isCheckpointed 0
> ~ # mount -t yaffs /dev/mtdblock3 /mnt
> yaffs: dev is 32505859 name is "mtdblock3"
> yaffs: passed flags ""
> yaffs: Attempting MTD mount on 31.3, "mtdblock3"
> yaffs_read_super: isCheckpointed 0
>
> After mount:
> ~ # wc -cmlw /etc/init.d/modules.sh
>         67       180      1467      1467 /etc/init.d/modules.sh
> ~ # wc -cmlw /mnt/etc/init.d/modules.sh
>         31       115      1024      1024 /mnt/etc/init.d/modules.sh
>
> As you can see file is truncated and not work.
>
> How can I solve and diagnostic this problem?

This problem is most likely caused by some sort of corruption of the tags in 
the driver.


>
> Thank you and excuse me for my bad english.

Your English is much, much  better than my Russian!


-- CHarles