Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes empty_blocks , can't read superblock

[santhoshunnikrishnan at tataelxsi.co.in]

Hi all,

   I am having a problem in using with flash_erasell -j and mount commands
together.

I erased one NAND partition using the command "flash_eraseall -j /dev/mtd1"

The erase was successfully completed and the clean up marker were written
(as per the prints , i am saying this)

Then i tried to mount the erased partition using the command "mount -t jffs2
/dev/mtdblock1 /mnt"

but i got one error message saying that 

"Cowardly refusing to erase blocks on filesystem with no valid JFFS2 nodes
empty_blocks 8, bad_blocks 0, c->nr_blocks 48
mount: /dev/mtdblock1: can't read superblock"

I tried to erase the flash using the command "flash_eraseall /dev/mtd1" 

and then i tried to mount the erased partition using the command "mount -t
jffs2 /dev/mtdblock1 /mnt"

This time it successfully mounted and i am able to write contents to the
partition.

I want to know why i am not able to mount after erasing the flash using the
-j option. I know that -j is to write the cleanup marker and the MTD site
recommands erasing the flash with this "-j"

Can anyone help me what the problem is ? 


Regards,
Santhosh Unnikrishnan


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