Build a mini Linux from scratch (3)

10. Recompile the kernel to support keyboard and mouse drivers

11. Fourth Test start

12. Using scripting to implement the INIT function

13. Fifth Test start

14. Compile the kernel so that it can directly identify the device files

15. Sixth Test Start

10. Recompile the kernel to support keyboard and mouse drivers

[[email protected] ~]# lsusb  //View USB interface type and model [[EMAIL&NBSP;PROTECTED]&NBSP;~]#&NBSP;CD  /usr/src/linux[[email protected] ~]# make menuconfig//enables keyboard and mouse driver support Device drivers   --->Input device support  ---> [*]   Keyboards   --->[*]   Mice  --->  default is PS/2 driver, if USB, you need to load USB driver first <*>    Mouse interface[*] USB support  ---><*>   support  for Host-side USB<*>     xHCI HCD  (usb 3.0)  support[*]       debugging for the xhci host  controller<*>     ohci hcd support 1.1 Drive <*>      UHCI HCD  (Most intel and via)  support[[email  Protected] linux]# make bzimage[[email protected] linux]# cp arch/x86/boot/bzimage /mnt/boot/vmlinuz  cp: overwrite  '/mnt/boot/vmlinuz '?  y

At this point, you can copy several common commands for testing.

11. Fourth Test start

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12. Using scripting to implement the INIT function

(Note porting mount, echo command)

[Email protected] ~]# vim/mnt/sysroot/sbin/init#!/bin/bashecho-e "\twelcome to \033[32mmy mini\033[0m Linux" mount-n-t Proc Proc/procmount-n-T Sysfs sysfs/sysmount-n-o remount,rw/dev/sda2//bin/bash[[email protected] ~]# chmod +x/mn T/sysroot/sbin/init[[email protected] ~]# mkdir/mnt/sysroot/{sys,proc,dev}[[email protected] ~]# vim/mnt/boot/grub/ Grub.confdefault=0timeout=5hiddenmenutitle sxj minu root (hd0,0) kernel/vmlinuz root=/dev/sda2 init=/sbin/i NIT (can be omitted, default location)

13. Fifth Test start

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Since the device files were created by the Udev program, we do not have udev at this time,

All/dev/directories are empty

14. Compile the kernel so that it can directly identify the device files

[[email protected] ~]# Cd/usr/src/linux[[email protected] linux]# make menuconfig//Select to directly identify device file option device Drivers---> Generic Driver Options---> [*] Maintain a DEVTMPFS filesystem to Mount At/dev [*] AutoMount DEVTMPFS At/dev, after the kernel mounted the rootfs [[E-mail protected] linux]# make Bziamge[[email protected] linux]# CP arch/ X86/boot/bzimage/mnt/boot/vmlinuz cp:overwrite '/mnt/boot/vmlinuz '? Y[[email protected] linux]# sync

15. Sixth Test Start

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This article is from the "Homecoming" blog, make sure to keep this source http://sixijie123.blog.51cto.com/11880770/1881602

Build a mini Linux from scratch (3)