adb remount指令运行出现错误情况分析
情况一：
adb server version (31) doesn't match this client (36); killing... error:解决方法：
结束360手机助手进程
情况二：
adb remount
dm_verity is enabled on the system partition.
Use "adb disable-verity" to disable verity.
If you do not, remount may succeed, however, you will still not be able to write to these volumes.
remount of system failed: Read-only file system方法一：
1.adb disable-verity and than adb reboot( may be not work sometimes)
方法二：
2.device/xx/baytrail/xx/fstab
/dev/block/by-name/android_system /system ext4 ro wait,verify
删除 verify 标识；
方法三：
让 adb 默认 打开root 权限，
修改 ramdisk里的 ro.secure=0