固化文件系统

burn system

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