我用的是友善的根文件系统。串口倒是有输出，但就是有这个问题：init: critical process 'servicemanager' exited 4 times in 4 minutes; rebooting into recovery mode
网上的解决办法是 CONFIG_ANDROID_BINDER_IPC=y 说把这个android_binder_ipc这个选项选上就可以了。但是我确定我是选上了的啊，为什么还是有这个问题。下面是串口输出：
Assembly codeinit: cannot open '/initlogo.rle'
sh: can't access tty; job control turned off
/ # init: cannot find '/system/bin/playmp3', disabling 'bootsound'
init: untracked pid 1469 exited
init: untracked pid 1468 exited
warning: `rild' uses 32-bit capabilities (legacy support in use)
init: untracked pid 1480 exited
init: untracked pid 1481 exited
init: untracked pid 1488 exited
init: untracked pid 1489 exited
init: untracked pid 1504 exited
init: critical process 'servicemanager' exited 4 times in 4 minutes; rebooting i
nto recovery mode