Firefly-RK3399根文件系统介绍

创建 Ubuntu 根文件系统

准备工作

安装qemu

在Linux PC主机上安装模拟器：

sudo apt-get install qemu-user-static

下载和解压 ubuntu-core

Firefly-rk3399 ubuntu根文件系统是基于Ubuntu base 16.04来创建的。用户可以到ubuntu cdimg 下载，选择下载ubuntu-base-16.04.1-base-arm64.tar.gz 。

下载完之后，创建临时文件夹并解压根文件系统：

mkdir temp sudo tar -xpf ubuntu-base-16.04.1-base-arm64.tar.gz -C temp

修改根文件系统

准备工作

准备网络：

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

准备qemu

sudo cp /usr/bin/qemu-aarch64-static temp/usr/bin/

进入根文件系统进行操作：

sudo chroot temp

更新及安装

更新：

apt update apt upgrade

安装自己需要的功能

apt install vim git ....(根据自己需求添加)

安装xubuntu

apt-get install xubuntu-desktop apt-get install udev

可能出现错误:

E: Unable to locate package xxxx

安装包的源没有添加到/etc/apt/source.list中,导致无法识别安装包,可以自行添加源，也可以使用下面给出的source.list覆盖原来的/etc/apt/source.list文件:

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates main restricted ## Uncomment the following two lines to add software from the 'universe' ## repository. ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://ports.ubuntu.com/ubuntu-ports/ xenial universe deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial universe deb http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-updates universe ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-backports main restricted deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security main restricted deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security universe deb http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse deb-src http://ports.ubuntu.com/ubuntu-ports/ xenial-security multiverse

添加用户及设置密码

添加用户

useradd -s '/bin/bash' -m -G adm,sudo firefly

给用户设置密码：

passwd firefly

给root用户设置密码：

passwd root

修改完自己的根文件系统就可以退出了。

exit

制作根文件系统

制作自己的根文件系统，大小依据自己的根文件系统而定，注意依据temp文件夹的大小来修改count值

mkdir rootfs dd if=/dev/zero of=linuxroot.img bs=1M count=4000 mkfs.ext4 linuxroot.img sudo mount linuxroot.img rootfs/ sudo cp -rfp temp/* rootfs/ sudo umount rootfs/ e2fsck -p -f linuxroot.img resize2fs -M linuxroot.img

这样 linuxroot.img 就是最终的根文件系统映像文件了。

FAQs

根文件系统加载后，大小不正常，未占满整个分区：

在系统正确加载后执行扩展文件系统命令：

resize2fs /dev/mmcblk1p6 --> rootfs 分区 查看 parameter文件中，root= 节点设备