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自己搞了个系统,采购的3354核心板,一直在tf卡上启动的, 今天想将系统烧写进板载emmc,但是启动不了



我先从tf卡系统启动,然后对板载emmc进行分区和挂载,然后拷贝文件系统到emmc分区上,但是从emmc启动不了,uboot是可以运行的,但是不能启动内核,什么原因呢:

emmc分区1是启动分区,拷贝了MLO、u-boot.img文件,分区2是ext4,拷贝了文件系统,文件系统boot里有设备树和内核镜像,但是现在uboot能运行,但是内核启动不了,怎么回事呢