mtd-abi.h->eccpos[32] //32->64
yaffs_guts.c
eraseall /dev/mtd2
mount .../mtdblock2
tftp -r flash_erase -g 192.168.1.xxx
82000000 2G
200000000 4 X -----> 8G
home->tar->xuf->cp->sh(nand)
home->cp->sh
规避方法,识别
id,ro/rw 时序不稳?yaffs格式?