Hit any key to stop autoboot: 0
U-Boot# mmc rescan
U-Boot# mw.b 0x82000000 0xFF 0x40000
U-Boot# fatload mmc 0 0x82000000 u-boot.img
reading u-boot.img
369352 bytes read in 49 ms (7.2 MiB/s)
U-Boot# fatwrite mmc 0 0x82000000 uback.img ${filesize}
writing uback.img
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
mmc_send_cmd: timedout waiting on cmd inhibit to clear
369352 bytes written
U-Boot#
进入Linux系统中查看分区，也没有看到相关的文件。
