mount命令-手动挂载设备 格式: mount [options] [-t fstype] [-o option] 设备 挂载点 mount -n -o remount,rw / - Mount the file system and make it writeable mount -uw / - Make the filesystem read only again. mount -ur / 常用选项 [ options ] -t fstype(ext2.ext3.ext4.xfs.iso9
3.System Permissions(系统权限) Android is a privilege-separated operating system, in which each application runs with a distinct system identity (Linux user ID and group ID). Parts of the system are also separated into distinct identities. Linux thereb