From: Neil M. <ne...@gu...> - 2011-04-12 19:55:00
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Actually I'm told this won't work since the timestamps will be different. Not sure how else you might verify your image. -- Neil On 11-04-11 03:44 PM, Neil MacMunn wrote: > Once you have extracted the image to /media/mtdblock4 you can try to > compress the filesystem again and compare the md5sum to that of the > original archive. > > Something like this: > > # tar -cjf /media/mtdblock4/* newarchive.tar.bz2 > # md5sum newarchive.tar.bz2> newmd5sum.txt > > -- > Neil > > On 11-04-06 03:13 PM, Victhor wrote: >> Thanks, that alone did not work, I had to run mkfs.jffs2 >> -o /dev/mtdblock4 after it(otherwise it would not mount, same error as >> the one on the original message), then mount the device. Unfortunately I >> get loads of ECC errors upon mount, and during the erasure process I >> noticed there were 3 bad blocks. I don't know if these appeared during >> my (little) usage of the device or if they are marked by the factory. >> Also, if I try to boot any kernel image on it, I get this: >> >> NAND read: device 0 offset 0x280000, size 0x400000 >> NAND read from offset 280000 failed -74 >> 4194304 bytes read: ERROR >> ## Booting kernel from Legacy Image at 82000000 ... >> Image Name: Angstrom/2.6.34/overo >> Image Type: ARM Linux Kernel Image (uncompressed) >> Data Size: 2929436 Bytes = 2.8 MiB >> Load Address: 80008000 >> Entry Point: 80008000 >> Verifying Checksum ... Bad Data CRC >> ERROR: can't get kernel image! >> >> The same image works fine on a microSD. I don't know how to obtain the >> image back from the NAND to check the md5(to see if it's ok), though. >>> You might have to use the -j option with flash_eraseall. This works for me. >>> >>> # umount /dev/mtdblock4 >>> # flash_eraseall -j /dev/mtd4 >>> # mkdir -p /media/mtdblock4 >>> # mount -t jffs2 /dev/mtdblock4 /media/mtdblock4 >>> # cd /media/mtdblock4 >>> # tar xjf rootfs.tar.bz2 >>> >>> >>> -- >>> Neil >>> >>> On 11-04-05 01:50 PM, Victhor wrote: >>>> I finally managed to reflash my device after a accidental NAND wipe, but >>>> I can't seem to be able to write any rootfs to it, >>>> because /dev/mtdblock4 will not mount: >>>> >>>> root@overo:/media/mmcblk0p1# mount -t >>>> jffs2 /dev/mtdblock4 /media/mtdblock4/ >>>> Cowardly refusing to erase blocks on filesystem with no valid JFFS2 >>>> nodes >>>> empty_blocks 1993, bad_blocks 0, c->nr_blocks 1996 >>>> mount: /dev/mtdblock4: can't read superblock >>>> >>>> I tried to use flash_eraseall /dev/mtd4 but it didn't help... >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Xperia(TM) PLAY >>>> It's a major breakthrough. An authentic gaming >>>> smartphone on the nation's most reliable network. >>>> And it wants your games. >>>> http://p.sf.net/sfu/verizon-sfdev >>>> _______________________________________________ >>>> gumstix-users mailing list >>>> gum...@li... >>>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >>> >>> >>> ------------------------------------------------------------------------------ >>> Xperia(TM) PLAY >>> It's a major breakthrough. An authentic gaming >>> smartphone on the nation's most reliable network. >>> And it wants your games. >>> http://p.sf.net/sfu/verizon-sfdev >>> _______________________________________________ >>> gumstix-users mailing list >>> gum...@li... >>> https://lists.sourceforge.net/lists/listinfo/gumstix-users >> >> >> >> ------------------------------------------------------------------------------ >> Xperia(TM) PLAY >> It's a major breakthrough. An authentic gaming >> smartphone on the nation's most reliable network. >> And it wants your games. >> http://p.sf.net/sfu/verizon-sfdev >> _______________________________________________ >> gumstix-users mailing list >> gum...@li... >> https://lists.sourceforge.net/lists/listinfo/gumstix-users > > > ------------------------------------------------------------------------------ > Forrester Wave Report - Recovery time is now measured in hours and minutes > not days. Key insights are discussed in the 2010 Forrester Wave Report as > part of an in-depth evaluation of disaster recovery service providers. > Forrester found the best-in-class provider in terms of services and vision. > Read this report now! http://p.sf.net/sfu/ibm-webcastpromo > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |