Rock/ubuntu/zh cn
安装所需要的包
sudo apt-get install qemu-user-static binfmt-support
生成镜像文件
dd if=/dev/zero of=rock_rootfs.img bs=1M count=1024 mkfs.ext4 -F -L linuxroot rock_rootfs.img #kernel use the label linuxroot to mount the rootfs as / sudo mount -o loop rock_rootfs.img /mnt
当然你也可以从linaro下载已经编译好的ubuntu根文件系统:
wget https://releases.linaro.org/13.08/ubuntu/raring-images/alip/linaro-raring-alip-20130826-474.tar.gz sudo tar zxvf linaro-raring-alip-20130826-474.tar.gz -C /mnt cd /mnt sudo mv binary/* . sudo rmdir binary
拷贝你之前 编译内核的内核模块
sudo mkdir -p /mnt/lib/modules sudo cp -r /path/to/rockchip-3.0/modules/lib/modules/3.0.36+ /mnt/lib/modules
准备 chroot
sudo cp /usr/bin/qemu-arm-static /mnt/usr/bin sudo modprobe binfmt_misc sudo mount -t devpts devpts /mnt/dev/pts sudo mount -t proc proc /mnt/proc
Chroot 并 更新配置
sudo chroot /mnt
现在我们已经在目标系统的rootfs中了,下面继续配置这个系统。
修改默认shell bash
root@target:# rm /bin/sh && ln -s /bin/bash /bin/sh
安装需要预安装到系统的软件包
root@target:# apt-get update root@target:# apt-get install ssh vim usbutils wpasupplicant wireless-tools
增加一个链接到mtd块名称的脚本(Add a script to link the mtd blocks to names)
root@target:# vim /usr/local/bin/mtd-by-name.sh
增加如下字段:
#!/bin/sh -e # mtd-by-name link the mtdblock to name # radxa.com, thanks to naobsd rm -rf /dev/block/mtd/by-name/ mkdir -p /dev/block/mtd/by-name for i in `ls -d /sys/class/mtd/mtd*[0-9]`; do name=`cat $i/name` tmp="`echo $i | sed -e 's/mtd/mtdblock/g'`" dev="`echo $tmp |sed -e 's/\/sys\/class\/mtdblock/\/dev/g'`" ln -s $dev /dev/block/mtd/by-name/$name done
增加mtd-by-name脚本到rc.local,使得上段代码可以随开机启动:
root@target:# vim /etc/rc.local
在 “exit 0”前增加一行
/usr/local/bin/mtd-by-name.sh
完成! :D
root@target:# exit sync sudo umount /mnt
现在你已经有了RR的根文件系统 rock_rootfs.img 了。
故障排除
bluez的包配置错误
Setting up bluez (4.101-0ubuntu8b1) ... reload: Unknown instance: invoke-rc.d: initscript dbus, action "force-reload" failed. start: Job failed to start invoke-rc.d: initscript bluetooth, action "start" failed. dpkg: error processing bluez (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of blueman: blueman depends on bluez (>= 4.25); however: Package bluez is not configured yet. ...
这是因为bluez包如果要正确配置,必须要dbus服务运行才行。参照下面的:
service dbus start dbus start/running, process 24551 dpkg --configure bluez
非root用户不能使用网络
编辑/etc/group,并添加以下代码:
inet:x:3003:root net_raw:x:3004:root
然后运行
gpasswd -a username inet