固化jffs2 U-Boot$ tftp 80008000 safe.crmafs U-boot$ nand erase clean 0x00600000 $(filesize) U-Boot$ nand write.jffs2 0x80008000 0x00600000 $(filesize) setenv bootargs root=/dev/mtdblock3 ro console=ttyS0,115200 mem=64M rootfstype=jffs2 使用cramfs作为备份文件系统： [root@localhost zlg]# mkcramfs rootfs_safe safefs.cramfs 固化cramfs U-Boot$ tftp 80008000 rootfs_safe.jffs2 U-boot$ nand erase clean 0x00600000 $(filesize) U-Boot$ nand write.jffs2 0x80008000 0x00600000 $(filesize) setenv bootargs root=/dev/mtdblock3 ro console=ttyS0,115200 mem=64M rootfstype=cramfs |