[Country EMBED strategy] [102] [Kernel-driven development environment construction]

Server Environment Setup

1. Configuring the TFTP server

1.1. Set TFTP directory

Vim/etc/xinetd.d/tftp

Server_args =-S .../tftp

Disable = no

1.2. Start the TFTP service

/etc/init.d/xinetd restart

2. Configure Server for NFS

2.1. Set NFS Directory

Vim/etc/exports

.../nfs * (Rw,sync,no_root_squash)

2.2. Start the NFS service

/etc/init.d/nfs restart

Bootloader Environment Construction

1. Unzip the bootloader

Tar zxvf uboot_mini2440.tar.gz

2. Clear Bootloader

CD uboot_mini2440

Make Distclean

3. Configure Bootloader

Make Mini2440_config

4. Compiling bootloader

Make Arch=arm cross_compile=arm-linux-

5. Download bootloader

Insmod Usb.ko

./DNW U-boot.bin 30008000

6. Setting the network environment variable

Setenv ethaddr 12:34:56:78:9A:BC

setenv ipaddr 192.168.1.230

Setenv ServerIP 192.168.1.xxx

Saveenv

7. Test network connectivity

Ping 192.168.1.xxx

8. Setting the Startup environment variable

8.1. Set tftp download and boot kernel

setenv bootcmd tftp 31000000 uimage \; Bootm 31000000

8.2. Setting up NFS mount root file system

setenv Bootargs noinitrd console=ttysac0,115200 init=/init root=/dev/nfs rw nfsroot=192.168.1.101:.../rootfs ip= 192.168.1.230:192.168.1.101:192.168.1.1:255.255.255.0::eth0:off

Saveenv

ROOTFS Environment Construction

1. Create a system directory

mkdir Rootfs

CD Rootfs

mkdir bin Dev etc lib mnt proc sbin sys tmp usr var

mkdir usr/bin usr/lib Usr/sbin lib/modules

2. Create a Device file

CD Dev

Mknod-m 666 Console C 5 1

Mknod-m 666 NULL C 1 3

3. Add a configuration file

Tar zxvf etc.tar.gz

CP-RF etc/* rootfs/etc/

4. Add System Tools

4.1. Unzip the BusyBox

Tar zxvf busybox-1.13.3.tar.gz

4.2. Clear BusyBox

Make Distclean

4.3. Configure BusyBox

CD busybox-1.13.3

Make Menuconfig

BusyBox Settings->build Options->[*]build BusyBox as a static binary

BusyBox settings->build options-> (arm-linux-) Cross compiler prefix

BusyBox settings->installation Options->[*]don ' t use/usr

BusyBox settings->installation options-> (.../rootfs) busybox installation prefix

4.4. Compiling BusyBox

Make

4.5. Installing BusyBox

Make install

Kernel Environment Construction

1. Unzip the kernel

Tar zxvf linux-mini2440.tar.gz

2. Clear kernel

CD linux-mini2440

Make Distclean

3. Configure kernel

3.1. Load the configuration file

Make Menuconfig Arch=arm

Load an alternate configuration File->.config->exit->save

3.2. Configuration file System

Make Menuconfig Arch=arm

General setup->[]initial RAM filesystem and RAM disk

File systems->[*]network file Systems->[*]root file system on NFS

4. Compiling kernel

4.1. Copy the Mkimage tool

CP .../uboot_mini2440/tools/mkimage/bin

4.2. Compiling kernel

Make Uimage arch=arm cross_compile=arm-linux-

5. Compiling the kernel module

Make Modules Arch=arm cross_compile=arm-linux-

6. Installing the kernel module

Make Modules_install arch=arm Install_mod_path=.../rootfs

7. Copy the image to the TFTP directory

CP Kernel/arch/arm/boot/uimage .../tftp

8. Copy the Rootfs to the NFS directory

CP rootfs/* .../nfs-rf

[Country EMBED strategy] [102] [Kernel-driven development environment construction]