如何打开kernel最开始的打印时间:2023-03-10 05:34:46 1.Kernel hacking ---> Kernel low-level debugging functions --> Early printk 2.boot option中你需要添加 earlyprintk项。类似于:console=ttySAC0,115200 root=/dev/mtdblock3 rootfstype=jffs2 earlyprintk