Linux启动后自动登录root进入控制台

通过修改 /etc/inittab 文件来实现

1. buildroot 编译出来的 /etc/inittab 文件如下

#
# Copyright (C) 2001 Erik Andersen <andersen@codepoet.org>
#
# Note: BusyBox init doesn't support runlevels.  The runlevels field is
# completely ignored by BusyBox init. If you want runlevels, use
# sysvinit.
#
# Format for each entry: <id>:<runlevels>:<action>:<process>
#
# id        == tty to run on, or empty for /dev/console
# runlevels == ignored
# action    == one of sysinit, respawn, askfirst, wait, and once
# process   == program to run

# Startup the system
::sysinit:/bin/mount -t proc proc /proc
::sysinit:/bin/mount -o remount,rw /
::sysinit:/bin/mkdir -p /dev/pts /dev/shm
::sysinit:/bin/mount -a
::sysinit:/bin/mkdir -p /run/lock/subsys
::sysinit:/sbin/swapon -a
null::sysinit:/bin/ln -sf /proc/self/fd /dev/fd
null::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin
null::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout
null::sysinit:/bin/ln -sf /proc/self/fd/2 /dev/stderr
::sysinit:/bin/hostname -F /etc/hostname
# now run any rc scripts
::sysinit:/etc/init.d/rcS

# Put a getty on the serial port
console::respawn:/sbin/getty -L  console 0 vt100 # GENERIC_SERIAL

# Stuff to do for the 3-finger salute
#::ctrlaltdel:/sbin/reboot

# Stuff to do before rebooting
::shutdown:/etc/init.d/rcK
::shutdown:/sbin/swapoff -a
::shutdown:/bin/umount -a -r

Linux启动后会进入 login 界面，需要 输入root 登录，才能进入控制台。

2. 修改 /etc/inittab 文件如下

 1 # /etc/inittab
 2 #
 3 # Copyright (C) 2001 Erik Andersen <andersen@codepoet.org>
 4 #
 5 # Note: BusyBox init doesn't support runlevels.  The runlevels field is
 6 # completely ignored by BusyBox init. If you want runlevels, use
 7 # sysvinit.
 8 #
 9 # Format for each entry: <id>:<runlevels>:<action>:<process>
10 #
11 # id        == tty to run on, or empty for /dev/console
12 # runlevels == ignored
13 # action    == one of sysinit, respawn, askfirst, wait, and once
14 # process   == program to run
15 
16 # Startup the system
17 ::sysinit:/bin/mount -t proc proc /proc
18 ::sysinit:/bin/mount -o remount,rw /
19 ::sysinit:/bin/mkdir -p /dev/pts /dev/shm
20 ::sysinit:/bin/mount -a
21 ::sysinit:/bin/mkdir -p /run/lock/subsys
22 ::sysinit:/sbin/swapon -a
23 null::sysinit:/bin/ln -sf /proc/self/fd /dev/fd
24 null::sysinit:/bin/ln -sf /proc/self/fd/0 /dev/stdin
25 null::sysinit:/bin/ln -sf /proc/self/fd/1 /dev/stdout
26 null::sysinit:/bin/ln -sf /proc/self/fd/2 /dev/stderr
27 ::sysinit:/bin/hostname -F /etc/hostname
28 # now run any rc scripts
29 ::sysinit:/etc/init.d/rcS
30 
31 # Put a getty on the serial port
32 #console::respawn:/sbin/getty -L  console 0 vt100 # GENERIC_SERIAL
33 ::respawn:-/bin/sh
34 
35 # Stuff to do for the 3-finger salute
36 #::ctrlaltdel:/sbin/reboot
37 
38 # Stuff to do before rebooting
39 ::shutdown:/etc/init.d/rcK
40 ::shutdown:/sbin/swapoff -a
41 ::shutdown:/bin/umount -a -r
42 #

Linux启动自动登录root，进入控制台，/etc/profile 文件被自动生效。

posted on 2024-09-04 10:09  f1engmin11  阅读(66)  评论(0)  编辑  收藏  举报

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