jffs2 filesystem not correct

[Altera_Forum]

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&#39;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

[Altera_Forum]

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 <div align='right'><{post_snapback}> (index.php?act=findpost&pid=21712)</div>   --- Quote End ---