A40idocker系统中想在文件系统安装库文件，可以通过模拟工具修改，这样就可以直接生成镜像

我这里使用的普通用户，多数命令需要加sudo

sudo apt-get install qemu-user-static

进入源码文件系统路径，

例如我的路径是/home/forlinx/Desktop/lichee/buildroot-201611/target/ubuntu16

配置修改

sudo cp /usr/bin/qemu-arm-static usr/bin/

拷贝PC主机端的dns配置，因为待会安装程序时要用网络：

sudo cp -b /etc/resolv.conf  etc/resolv.conf

sudo vim etc/apt/source.list

添加

deb http://ports.ubuntu.com/ubuntu-ports/ xenial main universe

deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial main universe

写脚本

#!/bin/bash

function mnt() {

    echo "MOUNTING"

    sudo mount -t proc /proc ${2}proc

    sudo mount -t sysfs /sys ${2}sys

    sudo mount -o bind /dev ${2}dev

    sudo chroot ${2}

}

function umnt() {

    echo "UNMOUNTING"

    sudo umount ${2}proc

    sudo umount ${2}sys

    sudo umount ${2}dev

}

if [ "$1" == "-m" ] && [ -n "$2" ] ;

then

    mnt $1 $2

elif [ "$1" == "-u" ] && [ -n "$2" ];

then

    umnt $1 $2

else

    echo ""

    echo "Either 1'st, 2'nd or both parameters were missing"

    echo ""

    echo "1'st parameter can be one of these: -m(mount) OR -u(umount)"

    echo "2'nd parameter is the full path of rootfs directory(with trailing '/')"

    echo ""

    echo "For example: ch-mount -m /media/sdcard/"

    echo ""

    echo 1st parameter : ${1}

    echo 2nd parameter : ${2}

fi

挂载文件系统

chmod +x ch-mount.sh

sudo ./ch-mount.sh -m 文件系统路径

修改文件系统

退出 exit

取消挂载

sudo ./ch-mount.sh -u 文件系统路径

制作镜像

进入源码路径

lichee文件路径内

sudo ./tools/build/bin/make_ext4fs -l 7168M out/sun8iw11p1/linux/common/rootfs.ext4 buildroot-201611/target/ubuntu16

e2fsck -p out/sun8iw11p1/linux/common/rootfs.ext4

resize2fs -M out/sun8iw11p1/linux/common/rootfs.ext4

不能用编译脚本会有问题