[U-Boot-Users] Erase at 0x00230000 failed immediately: -EROFS. Is the sector locked?

Hi.all!

Under uboot I erased the flash and programed the rootfs img(jffs2) to the flash. After linux boot, then linux print the following information:

Erase at 0x00230000 failed immediately: -EROFS. Is the sector locked?

When I modified the file in the jffs2, linux display "No space left on the dev". And run df, linux display the following information:

# df Filesystem 1k-blocks Used Available Use% Mounted on /dev/mtdblock0 4096 4096 0 100% /

but I only used 1.7MB and the size of mtdblock0 is 4MB.

thanks!

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