busybox 根文件系统制作

最新推荐文章于 2024-05-03 22:56:35 发布

原创最新推荐文章于 2024-05-03 22:56:35 发布 · 325 阅读

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本文详细介绍了Micro2440开发板的系统配置过程，包括fstab文件中的设备挂载设置、profile文件中环境变量的定义、inittab文件中的启动任务配置以及rcS脚本中的初始化步骤。

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micro2440

toolschain-4.3.2

gcc version 4.3.2 (Sourcery G++ Lite 2008q3-72)

etc/fstab
#device mount-point type option dump fsck order
proc /proc proc defaults 0 0
none /tmp ramfs defaults 0 0
mdev /dev ramfs defaults 0 0
sysfs /sys sysfs defaults 0 0

etc/profile
# /etc/profile: system-wide .profile file for the Bourne shells
#set hostname
HOSTNAME=`/bin/hostname`
USER=`id -un`
LOGNAME=$USER
HOME=$USER
PS1='\u@\h \W$ '
PATH=/bin:/sbin:/usr/bin:/usr/sbin
LD_LIBRARY_PATH=/lib:/usr/lib:$LD_LIBRARY_PATH
export PATH LD_LIBRARY_PATH HOSTNAME USER PS1 LOGNAME HOME

etc/inittab
::sysinit:/etc/init.d/rcS
console::askfirst:-/bin/sh
tty1::askfirst:-/bin/sh
::restart:/sbin/init
::ctrlaltdel:/sbin/reboot
::shutdown:/bin/umount -a -r
::shutdown:/sbin/swapoff -a

etc/init.d/rcS
#!/bin/sh
echo "----------mount all.........."
/bin/mount -a
echo "----------Starting mdev......"
echo /sbin/mdev > /proc/sys/kernel/hotplug
mdev -s
/bin/hostname -F /etc/sysconfig/HOSTNAME

[ 3.800000] Looking up port of RPC 100003/2 on 192.168.0.104
[ 4.770000] eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1
[ 4.770000] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 4.815000] Looking up port of RPC 100005/1 on 192.168.0.104
[ 4.825000] VFS: Mounted root (nfs filesystem).
[ 4.825000] Freeing init memory: 132K
init started: BusyBox v1.7.0 (2017-03-30 13:19:34 CST)
starting pid 821, tty '': '/etc/init.d/rcS'
----------mount all..........
----------Starting mdev......

Please press Enter to activate this console.
starting pid 825, tty '/dev/console': '/bin/sh'
root@Micro2440 /$
root@Micro2440 /$