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Altera_Forum's avatar
Altera_Forum
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19 years ago

jffs2 filesystem not correct

hi

we use nios2 on 2C35. it okay with

kernel altera (cygwin) or linux with buildroot for kernel 2.6.11

but when i change kernelt for kernel2.6.17 for a test, kernel boot but i got this

jffs2_scan_eraseblock()

You cannot use older JFFS2 filesystems with newer kernels

(a lot)

........

Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes

empty_blocks 22, bad_blocks 0, c->nr_blocks 32

VFS: Cannot open root device "mtdblock0" or unknown-block(31,0)

Please append a correct "root=" boot option

Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,0)

it's okay with root=/dev/mtdblock0 ro rootfstype=romfs init=/init

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/laugh.gif http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/laugh.gif

Bests regards

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    19 years ago

    but when i change kernelt for kernel2.6.17 for a test, kernel boot but i got this

    jffs2_scan_eraseblock()

    ....

    Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes

    empty_blocks 26, bad_blocks 0, c->nr_blocks 32

    jffs2 as some trouble

    what happen &#39;s ? is this kernel 2.6.17 ok with jffs2 ?

    futhermore, i try to use TMD utils i get each time

    erase or eraseall /dev/mtd0: MTD Erase failure: Input/output error

    hwat is wrong ? is this possible reason: If you get this message for each block than probably write protection is on. Check the WP pin

    Bests regards

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