第19章移植2内核和根文件系统

北风网项目实战培训第19章：系统移植2：内核和根文件系统移植讲师：老夫子（北风网)基于QT的PMP媒体播放器内核移植根文件系统移植NFS设置本讲大纲一、解压tar-xvflinux--mini2440-20100921.tar.gz二、设置交叉编译工具cdlinux-exportPATH=/usr/local/arm/4.3.2/bin:$PATH三、编译cpconfig_mini2440_x35.configmakemenuconfigmakezImage

内核移植步骤1四、制作uImage../../uboot/tekkamanninja-u-boot-2010.03-tekkaman-052d395/tools/mkimage-n'linux-2.6.32'-Aarm-Olinux-Tkernel-Cnone-a0x30008000-e0x30008040-darch/arm/boot/zImagearch/arm/boot/uImage.img五、通过UBoot下载内核tftp0x30008000uImage.imgnanderase0x80000300000nandwrite0x300080000x80000300000setbootcmd'nandread0x300080000x80000300000;bootm0x30008000'saveenvreset内核移植步骤2一、解压打包工具tarxvzfmkyaffs2image.tgz-C/二、创建文件系统mkdir/root/rootfscd/root/rootfsmkdirbindevetcusrlibsbinprocmkdirusr/binusr/sbinusr/lib三、解压busyboxcd/root/yizhi/rootfstar-xvfbusybox-1.13.3-mini2440.tgzcdbusybox-1.13.3根文件系统移植步骤1四、配置busyboxmakemenuconfigBusyboxsetting ->buildsoptions ->[*]buildbusyboxasastaticbinary（a） ->installitationoptions ->[*]don’tuse/usr（b）根文件系统移植步骤2五、编译makeARCH=armPILE=arm-linux-CONFIG_PREFIX=/root/rootfsallinstall六、制作配置文件cd/root/rootfs/etcviprofile内容如下#!/bin/shecho"Setseaechlibraryin/etc/profile"exportLD_LIBRARY_PATH=/libecho"Setuserpathin/etc/profile"exportPATH=/bin:/sbin:/usr/bin根文件系统移植步骤3七、创建设备文件cd/root/rootfsmknoddev/consolec51mknoddev/nullc13mknoddev/tty1c41mknoddev/tty2c42mknoddev/tty3c43mknoddev/tty4c44

八、拷背库文件cp/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/lib/*-a/root/rootfs/lib/九、压制文件系统cd/root/mkyaffs2image-128Mrootfsrootfs.yaffs2根文件系统移植步骤4十、设置flash启动setbootargs'noinitrdroot=/dev/mtdblock3rootfstype=yaffs2rwconsole=ttySAC0,115200init=/linuxrcmem=64M'Saveenvreset十一、设置NFS启动setenvbootargsroot=/dev/nfsnfsroot=1:/root/rootfsip=init=/linu