一、什么是 init
init是Linux系统操作中不可缺少的程序之一。
所谓的init进程,它是一个由内核启动的用户级进程。
内核自行启动(已经被载入内存,开始运行,并已初始化所有的设备驱动程序和数据结构等)之后,就通过启动一个用户级程序init的方式,完成引导进程。所以,init始终是第一个进程(其进程编号始终为1)。
内核会在过去曾使用过init的几个地方查找它,它的正确位置(对Linux系统来说)是/sbin/init。如果内核找不到init,它就会试着运行/bin/sh,如果运行失败,系统的启动也会失败。
二、运行级别
那么,到底什么是运行级呢?
简单的说,运行级就是操作系统当前正在运行的功能级别。这个级别从0到6 ,具有不同的功能。
不同的运行级定义如下:(可以参考Red Hat Linux 里面的/etc/inittab)
0 - 停机或者关机(千万不能把 initdefault 设置为0 ,不然就启动不了:))
1 - 单用户模式(只有 root 用户进行维护)
2 - 多用户。没有 NFS(Net File System)
3 - 完全多用户模式(标准的运行级)
4 - 没有用到
5 - X11,也称图形化 (xwindow,即图形界面)
6 - 重新启动 (千万不要把 initdefault 设置为 6 )
这些级别在 /etc/inittab 文件里指定。这个文件是 init 程序寻找的主要文件,最先运行的服务是放在 /etc/rc.d 目录下的文件。在大多数的 Linux 发行版本中,启动脚本都是位于 /etc/rc.d/init.d中的。这些脚本被用 ln 命令连接到 /etc/rc.d/rcn.d 目录。(这里的 n 就是运行级0-6)
查看当前系统的运行级别:
[root@test ~]# runlevel
N 3
前面的参数N是系统之前运行级别,后边的3是系统当前的运行级别。
可以执行如下命令,来切换运行级别(切换到图形化模式):
init 5
不管在哪个级别运行,都是有7个控制台,f1-f7,f7是有桌面的控制台,f1-f6是命令行方式。当我们运行在级别3的时候,使用命令startx可以打开桌面方式。但当我们运行在5级别,用alt+f2,或者任意一个命令控制台时,运行startx发现报错,因为这个时候,桌面控制台已经运行在f7了
三、在单用户模式下引导
一个重要的运行级别就是单用户模式(运行级别1),该模式中,只有一个系统管理员使用特定的机器,而且尽可能少地运行系统服务,其中包含登录。单用户模式对少数管理任务(比如在/usr分区上运行fsck)而言,是很有必要的,因为这需要卸载分区,但这是不可能的,除非所有的服务系统已被杀死。
一个正在运行的系统可以进入单用户模式,具体做法是利用init,请求运行级别1。内核启动时,在内核命令行指定single或emergency关键字,就可进入运行级别1了。内核同时也为init指定命令行, init从关键字得知自己不应该采用默认的运行级别(内核命令行的输入方式和你启动系统的方式有关)。
有时,以单用户模式进行启动是必要的,这样一来,用户在装入分区之前,或至少在装入分散的/usr分区之前,能手工运行fsck(在分散的文件系统上,任何活动都可能使其更为分散,所以应该尽可能地运行fsck)。
如果自动化的fsck在启动时失败了,启动脚本init的运行将自动进入单用户模式。这样做是为了防止系统使用不连贯的文件系统,这个文件系统是f s c k不能自动修复的。文件系统不连贯的现象极为少见,而且通常会导致硬盘的不连贯或实验性的内核释放,但最好能做到防患于未然。
由于安全上的考虑,在单用户模式下,启动外壳脚本之前,配置得当的系统会要求用户提供root密码。否则,它会简单地为L I L O输入合适的一行代码,以r o o t的身份登录(当然,如果/etc/passwd已经由于文件系统的问题而不连贯了,就不适合这里的原则了,为对付这种情况,你最好随时准备一张启动盘)。
不同的运行级有不同的用处,也应该根据自己的不同情形来设置。
例如,如果丢失了root口令,那么可以让机器启动进入单用户状态。在启动后的 lilo 提示符下输入:
init=/bin/sh rw 或者 init=/bin/sh 1
使机器进入运行级1 ,并把 root 文件系统挂为读写。他会跳过所有系统认证,让你可以使用passwd 程序来改变root口令,然后启动到一个新的运行级。
四、/etc/rc.d/ 目录下 rc*d 的对比详解
我们可以通过查看 /etc/rc.d/ 目录下 rc*.d 目录进行对比理解。
init 0
对应的系统会运行 /etc/rc.d/rc0.d/ 目录下指定的程序。
注意:文件中 K 开头的代表不能运行,S开头代表可以运行,我们可以看到,只能运行关机命令)
[root@test ~]# ls /etc/rc.d/rc0.d/ K00ipmievd K05conman K15sqlrcachemanager K50netconsole K74nscd K87irqbalance K89iscsi K92iptables K01dnsmasq K05saslauthd K15sqlrelay K50xinetd K74ntpd K87mcstrans K89iscsid K95firstboot K01setroubleshoot K05wdaemon K15svnserve K60crond K74rsyslog K87multipathd K89netplugd K95kudzu K01smartd K10cups K20nfs K69rpcsvcgssd K75netfs K87portmap K89openibd K97sysstat K02avahi-daemon K10hplip K24irda K72autofs K80kdump K87restorecond K89pand K99cpuspeed K02avahi-dnsconfd K10psacct K25sshd K73ipmi K85mdmonitor K88auditd K89rdisc K99microcode_ctl K02NetworkManager K10tcsd K30sendmail K73ypbind K85mdmpd K88pcscd K90bluetooth K99readahead_early K02oddjobd K10xfs K35vncserver K74acpid K85messagebus K88syslog K90network K99readahead_later K03yum-updatesd K12nrped K35winbind K74haldaemon K85rpcgssd K88wpa_supplicant K91capi K99vmware-tools K05anacron K15gpm K36lisa K74lm_sensors K85rpcidmapd K89dund K91isdn S00killall K05atd K15httpd K44rawdevices K74lvm2-monitor K86nfslock K89hidd K92ip6tables S01halt 根据上述标记的红色字体,系统开机会执行的两个进程是 killall 和 halt,这两个都表示为 终止进程。 因此,init 0 是用于表示 关机 的命令。
init 1 (单用户模式)
对应的系统会运行 /etc/rc.d/rc1.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc1.d/ K00ipmievd K05conman K15sqlrcachemanager K50netconsole K74ntpd K87mcstrans K89iscsid K95firstboot K01dnsmasq K05saslauthd K15sqlrelay K50xinetd K74rsyslog K87multipathd K89netplugd K95kudzu K01setroubleshoot K05wdaemon K15svnserve K60crond K75netfs K87portmap K89openibd K97sysstat K01smartd K10cups K20nfs K69rpcsvcgssd K80kdump K87restorecond K89pand K99microcode_ctl K02avahi-daemon K10hplip K24irda K72autofs K85mdmonitor K88auditd K89rdisc K99readahead_early K02avahi-dnsconfd K10psacct K25sshd K73ipmi K85mdmpd K88pcscd K90bluetooth K99readahead_later K02NetworkManager K10tcsd K30sendmail K73ypbind K85messagebus K88syslog K90network K99vmware-tools K02oddjobd K10xfs K35vncserver K74acpid K85rpcgssd K88wpa_supplicant K91capi S13cpuspeed K03yum-updatesd K12nrped K35winbind K74haldaemon K85rpcidmapd K89dund K91isdn S26lvm2-monitor K05anacron K15gpm K36lisa K74lm_sensors K86nfslock K89hidd K92ip6tables S99single K05atd K15httpd K44rawdevices K74nscd K87irqbalance K89iscsi K92iptables
这个级别启动的服务有3个,cpuspeed、lvm2相关的 和 single(单用户模式的服务)。
因此,此级别是单用户模式,仅有 root 能用,不支持其他用户,用于系统维护,禁止远程登录。
init 2 (多用户模式,没有NFS)
对应的系统会运行 /etc/rc.d/rc2.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc2.d/ K00ipmievd K05wdaemon K35winbind K74ntpd K88wpa_supplicant K99readahead_later S12restorecond S50hplip K01dnsmasq K10psacct K36lisa K74rsyslog K89dund S00microcode_ctl S12syslog S55sshd K01setroubleshoot K10tcsd K44rawdevices K75netfs K89iscsi S03sysstat S13cpuspeed S56cups K02avahi-daemon K15httpd K50netconsole K80kdump K89iscsid S03vmware-tools S13irqbalance S85gpm K02avahi-dnsconfd K15sqlrcachemanager K50xinetd K85mdmpd K89netplugd S04readahead_early S15mdmonitor S88nrped K02NetworkManager K15sqlrelay K69rpcsvcgssd K85messagebus K89openibd S08ip6tables S25bluetooth S90crond K02oddjobd K15svnserve K72autofs K85rpcgssd K89pand S08iptables S25pcscd S90xfs K03yum-updatesd K20nfs K73ipmi K85rpcidmapd K89rdisc S08mcstrans S26acpid S95anacron K05atd K24irda K73ypbind K86nfslock K91capi S09isdn S26hidd S99local K05conman K30sendmail K74haldaemon K87multipathd K95firstboot S10network S26lm_sensors S99smartd K05saslauthd K35vncserver K74nscd K87portmap K95kudzu S11auditd S26lvm2-monitor
这个级别启动的服务就多了,network、iptables、vmware-tools等服务都已经开启,但是 nfs、smb、openvpn 相关服务没有开启,这个级别不支持 nfs。
init 3 (完全的多用户模式)
对应的系统会运行 /etc/rc.d/rc3.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc3.d/ K00ipmievd K15svnserve K74rsyslog S03sysstat S13cpuspeed S26acpid S88nrped K01dnsmasq K20nfs K80kdump S03vmware-tools S13irqbalance S26haldaemon S90crond K02avahi-dnsconfd K24irda K85mdmpd S04readahead_early S13iscsi S26hidd S90xfs K02NetworkManager K30sendmail K87multipathd S05kudzu S13portmap S26lm_sensors S95anacron K02oddjobd K35vncserver K88wpa_supplicant S07iscsid S14nfslock S26lvm2-monitor S95atd K03yum-updatesd K35winbind K89dund S08ip6tables S15mdmonitor S28autofs S98avahi-daemon K05conman K36lisa K89netplugd S08iptables S18rpcidmapd S50hplip S99firstboot K05saslauthd K50netconsole K89openibd S08mcstrans S19rpcgssd S55sshd S99local K05wdaemon K69rpcsvcgssd K89pand S09isdn S22messagebus S56cups S99smartd K10psacct K73ipmi K89rdisc S10network S23setroubleshoot S56rawdevices K10tcsd K73ypbind K91capi S11auditd S25bluetooth S56xinetd K15httpd K74nscd K99readahead_later S12restorecond S25netfs S85gpm K15sqlrcachemanager K74ntpd S00microcode_ctl S12syslog S25pcscd S85sqlrelay
这个级别 nfs 服务是开启的,被称为 完全多用户模式。
登录以后进入控制台命令模式。这个时候也可以使用图形化,命令 startx 开启图形化界面,但是级别还是3.
init 4 (系统保留,未使用)
对应的系统会运行 /etc/rc.d/rc4.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc4.d/ K00ipmievd K15svnserve K74rsyslog K99readahead_later S12syslog S25pcscd S85sqlrelay K01dnsmasq K20nfs K80kdump S00microcode_ctl S13cpuspeed S26acpid S88nrped K02avahi-dnsconfd K24irda K85mdmpd S03vmware-tools S13irqbalance S26haldaemon S90crond K02NetworkManager K30sendmail K87multipathd S04readahead_early S13iscsi S26hidd S90xfs K02oddjobd K35vncserver K88wpa_supplicant S05kudzu S13portmap S26lm_sensors S95anacron K03yum-updatesd K35winbind K89dund S07iscsid S14nfslock S26lvm2-monitor S95atd K05conman K36lisa K89netplugd S08ip6tables S15mdmonitor S28autofs S98avahi-daemon K05saslauthd K50netconsole K89openibd S08iptables S18rpcidmapd S50hplip S99local K05wdaemon K69rpcsvcgssd K89pand S08mcstrans S19rpcgssd S55sshd S99smartd K10psacct K73ipmi K89rdisc S09isdn S22messagebus S56cups K10tcsd K73ypbind K91capi S10network S23setroubleshoot S56rawdevices K15httpd K74nscd K95firstboot S11auditd S25bluetooth S56xinetd K15sqlrcachemanager K74ntpd K97sysstat S12restorecond S25netfs S85gpm
此模式 被称为 “安全模式”。
init 5 (图形GUI模式)
对应的系统会运行 /etc/rc.d/rc5.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc5.d/ K00ipmievd K15svnserve K74rsyslog S03vmware-tools S13irqbalance S26haldaemon S90crond K01dnsmasq K20nfs K80kdump S04readahead_early S13iscsi S26hidd S90xfs K02avahi-dnsconfd K24irda K85mdmpd S05kudzu S13portmap S26lm_sensors S95anacron K02NetworkManager K30sendmail K87multipathd S07iscsid S14nfslock S26lvm2-monitor S95atd K02oddjobd K35vncserver K88wpa_supplicant S08ip6tables S15mdmonitor S28autofs S96readahead_later K03yum-updatesd K35winbind K89dund S08iptables S18rpcidmapd S50hplip S98avahi-daemon K05conman K36lisa K89netplugd S08mcstrans S19rpcgssd S55sshd S99firstboot K05saslauthd K50netconsole K89openibd S09isdn S22messagebus S56cups S99local K05wdaemon K69rpcsvcgssd K89pand S10network S23setroubleshoot S56rawdevices S99smartd K10psacct K73ipmi K89rdisc S11auditd S25bluetooth S56xinetd K10tcsd K73ypbind K91capi S12restorecond S25netfs S85gpm K15httpd K74nscd S00microcode_ctl S12syslog S25pcscd S85sqlrelay K15sqlrcachemanager K74ntpd S03sysstat S13cpuspeed S26acpid S88nrped
此模式被称为 “完全的图形化界面模式”。X11 登录态,登陆后进入图形 GUI 模式。
init 6 (正常关闭并重启)
对应的系统会运行 /etc/rc.d/rc5.d/ 目录下指定的程序。
[root@test ~]# ls /etc/rc.d/rc6.d/ K00ipmievd K05conman K15sqlrcachemanager K50netconsole K74nscd K87irqbalance K89iscsi K92iptables K01dnsmasq K05saslauthd K15sqlrelay K50xinetd K74ntpd K87mcstrans K89iscsid K95firstboot K01setroubleshoot K05wdaemon K15svnserve K60crond K74rsyslog K87multipathd K89netplugd K95kudzu K01smartd K10cups K20nfs K69rpcsvcgssd K75netfs K87portmap K89openibd K97sysstat K02avahi-daemon K10hplip K24irda K72autofs K80kdump K87restorecond K89pand K99cpuspeed K02avahi-dnsconfd K10psacct K25sshd K73ipmi K85mdmonitor K88auditd K89rdisc K99microcode_ctl K02NetworkManager K10tcsd K30sendmail K73ypbind K85mdmpd K88pcscd K90bluetooth K99readahead_early K02oddjobd K10xfs K35vncserver K74acpid K85messagebus K88syslog K90network K99readahead_later K03yum-updatesd K12nrped K35winbind K74haldaemon K85rpcgssd K88wpa_supplicant K91capi K99vmware-tools K05anacron K15gpm K36lisa K74lm_sensors K85rpcidmapd K89dund K91isdn S00killall K05atd K15httpd K44rawdevices K74lvm2-monitor K86nfslock K89hidd K92ip6tables S01reboot
这个级别里,只有2个服务: killall 和 reboot,分别表示 关闭现在的系统(关机)、重启。
因此,此级别是 重启。
不同的系统版本,可能里面的文件会不同,如果要查看,可以通过 ll 命令来看,其实他们都是软链接。
[root@test rc.d]# ll rc6.d/* lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K00ipmievd -> ../init.d/ipmievd lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K01dnsmasq -> ../init.d/dnsmasq lrwxrwxrwx 1 root root 24 Aug 8 2016 rc6.d/K01setroubleshoot -> ../init.d/setroubleshoot lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K01smartd -> ../init.d/smartd lrwxrwxrwx 1 root root 22 Aug 8 2016 rc6.d/K02avahi-daemon -> ../init.d/avahi-daemon lrwxrwxrwx 1 root root 24 Aug 8 2016 rc6.d/K02avahi-dnsconfd -> ../init.d/avahi-dnsconfd lrwxrwxrwx 1 root root 24 Aug 8 2016 rc6.d/K02NetworkManager -> ../init.d/NetworkManager lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K02oddjobd -> ../init.d/oddjobd lrwxrwxrwx 1 root root 22 Mar 8 2017 rc6.d/K03yum-updatesd -> ../init.d/yum-updatesd lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K05anacron -> ../init.d/anacron lrwxrwxrwx 1 root root 13 Aug 8 2016 rc6.d/K05atd -> ../init.d/atd lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K05conman -> ../init.d/conman lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K05saslauthd -> ../init.d/saslauthd lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K05wdaemon -> ../init.d/wdaemon lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K10cups -> ../init.d/cups lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K10hplip -> ../init.d/hplip lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K10psacct -> ../init.d/psacct lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K10tcsd -> ../init.d/tcsd lrwxrwxrwx 1 root root 13 Aug 8 2016 rc6.d/K10xfs -> ../init.d/xfs lrwxrwxrwx 1 root root 15 Apr 17 2017 rc6.d/K12nrped -> ../init.d/nrped lrwxrwxrwx 1 root root 13 Aug 8 2016 rc6.d/K15gpm -> ../init.d/gpm lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K15httpd -> ../init.d/httpd lrwxrwxrwx 1 root root 26 Nov 23 2017 rc6.d/K15sqlrcachemanager -> ../init.d/sqlrcachemanager lrwxrwxrwx 1 root root 18 Nov 23 2017 rc6.d/K15sqlrelay -> ../init.d/sqlrelay lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K15svnserve -> ../init.d/svnserve lrwxrwxrwx 1 root root 13 Aug 8 2016 rc6.d/K20nfs -> ../init.d/nfs lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K24irda -> ../init.d/irda lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K25sshd -> ../init.d/sshd lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K30sendmail -> ../init.d/sendmail lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K35vncserver -> ../init.d/vncserver lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K35winbind -> ../init.d/winbind lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K36lisa -> ../init.d/lisa lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K44rawdevices -> ../init.d/rawdevices lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K50netconsole -> ../init.d/netconsole lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K50xinetd -> ../init.d/xinetd lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K60crond -> ../init.d/crond lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K69rpcsvcgssd -> ../init.d/rpcsvcgssd lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K72autofs -> ../init.d/autofs lrwxrwxrwx 1 root root 14 Nov 23 2017 rc6.d/K73ipmi -> ../init.d/ipmi lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K73ypbind -> ../init.d/ypbind lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K74acpid -> ../init.d/acpid lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K74haldaemon -> ../init.d/haldaemon lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K74lm_sensors -> ../init.d/lm_sensors lrwxrwxrwx 1 root root 22 Nov 23 2017 rc6.d/K74lvm2-monitor -> ../init.d/lvm2-monitor lrwxrwxrwx 1 root root 14 Aug 11 2016 rc6.d/K74nscd -> ../init.d/nscd lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K74ntpd -> ../init.d/ntpd lrwxrwxrwx 1 root root 17 Nov 23 2017 rc6.d/K74rsyslog -> ../init.d/rsyslog lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K75netfs -> ../init.d/netfs lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K80kdump -> ../init.d/kdump lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K85mdmonitor -> ../init.d/mdmonitor lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K85mdmpd -> ../init.d/mdmpd lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K85messagebus -> ../init.d/messagebus lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K85rpcgssd -> ../init.d/rpcgssd lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K85rpcidmapd -> ../init.d/rpcidmapd lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K86nfslock -> ../init.d/nfslock lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K87irqbalance -> ../init.d/irqbalance lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K87mcstrans -> ../init.d/mcstrans lrwxrwxrwx 1 root root 20 Aug 8 2016 rc6.d/K87multipathd -> ../init.d/multipathd lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K87portmap -> ../init.d/portmap lrwxrwxrwx 1 root root 21 Aug 8 2016 rc6.d/K87restorecond -> ../init.d/restorecond lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K88auditd -> ../init.d/auditd lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K88pcscd -> ../init.d/pcscd lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K88syslog -> ../init.d/syslog lrwxrwxrwx 1 root root 24 Aug 8 2016 rc6.d/K88wpa_supplicant -> ../init.d/wpa_supplicant lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K89dund -> ../init.d/dund lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K89hidd -> ../init.d/hidd lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K89iscsi -> ../init.d/iscsi lrwxrwxrwx 1 root root 16 Aug 8 2016 rc6.d/K89iscsid -> ../init.d/iscsid lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K89netplugd -> ../init.d/netplugd lrwxrwxrwx 1 root root 17 Nov 23 2017 rc6.d/K89openibd -> ../init.d/openibd lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K89pand -> ../init.d/pand lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K89rdisc -> ../init.d/rdisc lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K90bluetooth -> ../init.d/bluetooth lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/K90network -> ../init.d/network lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K91capi -> ../init.d/capi lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/K91isdn -> ../init.d/isdn lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K92ip6tables -> ../init.d/ip6tables lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K92iptables -> ../init.d/iptables lrwxrwxrwx 1 root root 19 Aug 8 2016 rc6.d/K95firstboot -> ../init.d/firstboot lrwxrwxrwx 1 root root 15 Aug 8 2016 rc6.d/K95kudzu -> ../init.d/kudzu lrwxrwxrwx 1 root root 17 Apr 17 2017 rc6.d/K97sysstat -> ../init.d/sysstat lrwxrwxrwx 1 root root 18 Aug 8 2016 rc6.d/K99cpuspeed -> ../init.d/cpuspeed lrwxrwxrwx 1 root root 23 Aug 8 2016 rc6.d/K99microcode_ctl -> ../init.d/microcode_ctl lrwxrwxrwx 1 root root 25 Aug 8 2016 rc6.d/K99readahead_early -> ../init.d/readahead_early lrwxrwxrwx 1 root root 25 Aug 8 2016 rc6.d/K99readahead_later -> ../init.d/readahead_later lrwxrwxrwx 1 root root 22 Jul 19 2017 rc6.d/K99vmware-tools -> ../init.d/vmware-tools lrwxrwxrwx 1 root root 17 Aug 8 2016 rc6.d/S00killall -> ../init.d/killall lrwxrwxrwx 1 root root 14 Aug 8 2016 rc6.d/S01reboot -> ../init.d/halt