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!