下面是/etc/rcS.D目录下的所有脚步文件，其实都是/etc/init.d目录下文件的符号链接
＃前面带＠号的文件代表mid版本相对于现在的官方arm版本而特有的文件
S01mountkernfs.sh(mount内核虚拟文件系统)
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# Provides: mountkernfs
# Required-Start:
# Required-Stop:
# Should-Start: glibc
# Default-Start: S
# Default-Stop:
# Short-Description: Mount kernel virtual file systems.
# Description: Mount initial set of virtual filesystems the kernel
# provides and that are required by everything.
S02hostname.sh(设置基于/etc/hostname的主机名)
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# Provides: hostname
# Required-Start:
# Required-Stop:
# Should-Start: glibc
# Default-Start: S
# Default-Stop:
# Short-Description: Set hostname based on /etc/hostname
# Description: Read the machines hostname from /etc/hostname, and
# update the kernel value with this value. If
# /etc/hostname is empty, the current kernel value
# for hostname is used. If the kernel value is
# empty, the value 'localhost' is used.
S06keyboard-setup(设置控制台键盘)
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# Provides: keyboard-setup
# Required-Start: mountkernfs udev
# Required-Stop:
# Should-Start: keymap
# X-Start-Before: checkroot
# Default-Start: S
# Default-Stop:
# Short-Description: Set preliminary keymap
# Description: Set the console keyboard as early as possible
# so during the file systems checks the administrator
# can interact. At this stage of the boot process
# only the ASCII symbols are supported.
### END INIT INFO
＠ S07linux-restricted-modules-common
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S10udev(启动udev守护进程，udev能够根据系统中的硬件设备的状态动态更新设备文件，
包括设备文件的创建，删除等。设备文件通常放在/dev目录下。使用udev后，在/dev目录下就只包含系统中真正存在的设备。)
-----------------------------------------------------------------------------
# Provides: udev
# Required-Start: mountkernfs
# Required-Stop:
# Should-Start:
# Default-Start: S
# Default-Stop:
# Short-Description: Start the udev daemon.
# Description: Mounts the /dev virtual filesystem, starts the udev
# daemon and populates /dev.
S11mountdevsubfs.sh(在/dev下mount指定的文件系统)
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# Provides: mountdevsubfs
# Required-Start: mountkernfs
# Required-Stop:
# Should-Start: udev
# Default-Start: S
# Default-Stop:
# Short-Description: Mount special file systems under /dev.
# Description: Mount the virtual filesystems the kernel provides
# that ordinarily live under the /dev filesystem.
S15module-init-tools(加载/etc/modules中枚举的模块,mid版中什么也没做，modules中是空的)
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# Provides: module-init-tools
# Required-Start:
# Required-Stop:
# Should-Start: checkroot
# Should-stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Process /etc/modules.
# Description: Load the modules listed in /etc/modules.
S17procps(在内核启动时间配置内核参数)
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# Provides: procps
# Required-Start: mountkernfs
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Configure kernel parameters at boottime
# Description: Loads kernel parameters that are specified in /etc/sysctl.conf
S20checkroot.sh(检查根文件系统)
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# Provides: checkroot
# Required-Start: mountdevsubfs hostname
# Required-Stop:
# Should-Start: keymap hdparm bootlogd
# Should-stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Check to root file system.
S22mtab.sh(更新mtab file)
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# Provides: mtab
# Required-Start: checkroot
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Update mtab file.
# Description: Update the mount program's mtab file after
# all local filesystems have been mounted.
S30checkfs.sh(检查所有的文件系统)
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# Provides: checkfs
# Required-Start: checkroot
# Required-Stop:
# Should-Start: mtab cryptdisks
# Default-Start: S
# Default-Stop:
# Short-Description: Check all filesystems.
S35mountall.sh(mount 所有的文件系统)
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# Provides: mountall
# Required-Start: checkfs
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Mount all filesystems.
S36mountall-bootclean.sh(在所有的本地文件系统mount后清楚临时的文件系统)
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# Provides: mountall-bootclean
# Required-Start: mountall
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: bootclean after mountall.
# Description: Clean temporary filesystems after
# all local filesystems have been mounted.
S37mountoverflowtmp(mount tmpfs)
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# Provides: mountoverflowtmp
# Required-Start: mountall-bootclean
# Required-Stop: umountfs
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: mount emergency /tmp.
# Description: Mount a tmpfs on /tmp if there would
# otherwise be too little space to log in.
S37udev-finish(udev完成后做一些工作)
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# Provides: udev-finish
# Required-Start: mountall-bootclean udev
# Required-Stop:
# Should-Start:
# Default-Start: S
# Default-Stop:
# Short-Description: Finish up udev.
# Description: Copies the udev log into /var/log and copies any rules
# generated while the root filesystem was read-only into
# /etc/udev/rules.d
S40networking(指出网络接口)
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# Provides: networking
# Required-Start: mountkernfs ifupdown $local_fs
# Required-Stop: ifupdown $local_fs
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: Raise network interfaces.
S45mountnfs.sh(等待网络文件系统mount完成)
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# Provides: mountnfs
# Required-Start: $local_fs
# Required-Stop:
# Should-Start: $network $portmap nfs-common udev-mtab
# Default-Start: S
# Default-Stop:
# Short-Description: Wait for network file systems to be mounted
# Description: Network file systems are mounted by
# /etc/network/if-up.d/mountnfs in the background
# when interfaces are brought up; this script waits
# for them to be mounted before carrying on.
S46mountnfs-bootclean.sh(在网络文件系统mount完成后做一些清理工作)
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# Provides: mountnfs-bootclean
# Required-Start: mountnfs
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: bootclean after mountnfs.
# Description: Clean temporary filesystems after
# network filesystems have been mounted.
S49console-setup(设置控制台字体和按键映射表)
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# Provides: console-setup
# Required-Start: $remote_fs
# Required-Stop:
# Should-Start: console-screen
# Default-Start: S
# Default-Stop:
# Short-Description: Set console font and keymap
S55bootmisc.sh(一些清理工作)
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# Provides: bootmisc
# Required-Start: hostname $remote_fs
# Required-Stop:
# Should-Start: udev
# Default-Start: S
# Default-Stop:
# Short-Description: Miscellaneous things to be done during bootup.
# Description: Some cleanup. Note, it need to run after mountnfs-bootclean.sh.
S55urandom()
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# Provides: urandom
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: S
# Default-Stop: 0 6
# Short-Description: Save and restore random seed between restarts.
# Description This script saves the random seed between restarts.
# It is called from the boot, halt and reboot scripts.
S70x11-common
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# /etc/init.d/x11-common: set up the X server and ICE socket directories
### BEGIN INIT INFO
# Provides: x11-common
# Required-Start: $local_fs
# Required-Stop: $local_fs
# Default-Start: S
# Default-Stop:
### END INIT INFO
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