root@OpenWrt:/tmp# flash_erase /dev/mtd2 0 0
Erasing 2048 Kibyte @ 0 -- 100 % complete
root@OpenWrt:/tmp# nanddump /dev/mtd2 -f dumpfile
ECC failed: 4480
ECC corrected: 0
Number of bad blocks: 0
Number of bbt blocks: 0
Block size 2097152, page size 8192, OOB size 640
Dumping data starting at 0x00000000 and ending at 0x00200000...
root@OpenWrt:/tmp#