手动制作用于启动BeagleBoneBlack(am335x)的SD

1、需求MLO、u-boot.img、uImage、Systemfile

  1. 获取MLO、u-boot.img下载U-boot源码,解压获得源码,进入源码目录
    cd /home/zyr/Source_code/
    tar zxvf u-boot-2016.03.tar.gz
    cd u-boot-2016.03
    make arch=arm CROSS_COMPILE=arm-linux-gnueabihf- O=am335x-boneblack am335x_evm_defconfig all 

    获取uImage,下载kernel源码(链接: https://pan.baidu.com/s/1cqBd0q 密码: 7nzp),解压源码,进入源码目录

    进入源码目录
    运行脚本文件kernel.sh

    #! /bin/bash
    echo "Configure the kernel"
    until
    echo "1.make the omap2plus.defconfig"
    echo "2.make the menuconfig( Boot options -> Kernel command line type (root=/dev/mmcblk0p2 rootwait console=ttyO0,115200) )"
    echo "3.make the dtb"
    echo "4.make the zImage"
    echo "5.make the uImage"
    echo "6.make the distclean"
    echo "7.make the modules"
    echo "8.quit"
    read input
    test $input = 8
    do
    case $input in
    1)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- omap2plus_defconfig;;
    2)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig;;
    3)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zyr-am335x-evmsk.dtb;;
    4)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage;;
    5)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- LOADADDR=0x80008000 uImage;;
    6)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- distclean;;
    7)make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- -j8 modules;;
    8)echo"quit";;
    esac
    done

     

    第三项make dtb文件修改为am335x-boneblack.dtb

            获取精简的文件系统(链接: https://pan.baidu.com/s/1o8mONgQ 密码: qq3g)

将文件系统放入指定的目录中:
例如/home/zyr/Source_code/BeagleBone/BeagleBone-crate-SDcard

2、创建制作SD启动的脚本文件(手上需要SD卡及读卡器,将SD卡与读卡器插入电脑的USB接口):

#!/bin/sh


#指定SD卡的路径(lsblk查看SD卡的路径)
DISK="/dev/sdb"

#指定MLO(SPL)的路径
MLO="/home/zyr/Source_code/u-boot-2016.03/am335x-boneblack/MLO"

#指定u-boot.img的路径
ubootimg="/home/zyr/Source_code/u-boot-2016.03/am335x-boneblack/u-boot.img"

#指定uEnv.txt的路径
uEnvtxt="/home/zyr/Source_code/u-boot-2016.03/am335x-boneblack/uEnv.txt"

#指定filesystem的路径
filesystem="/home/zyr/Source_code/BeagleBone/BeagleBone-crate-SDcard/Self-for-Boneblack-filesystem.tar.gz"

#指定Blageboneblackdtb的路径
Beaglebonedtb="/home/zyr/Source_code/linux-3.14.65/arch/arm/boot/dts/am335x-boneblack.dtb"

#指定uImage的路径
uImage="/home/zyr/Source_code/linux-3.14.65/arch/arm/boot/uImage"

#擦除SD卡
dd if=/dev/zero of=${DISK} bs=1M count=10
sync

#烧写MLO,U-boot
dd if=${MLO} of=${DISK} count=1 seek=1 bs=128K
sync
dd if=${ubootimg} of=${DISK} count=3 seek=1 bs=384K
sync
#dd if=/home/zyr/MLO of=${DISK} count=1 seek=1 bs=128K
#dd if=/home/zyr/u-boot.img of=${DISK} count=3 seek=1 bs=384K

#创建分区(Linux系统)
sfdisk --unit M ${DISK} <<-__EOF__
4,,L,*
__EOF__

#格式化分区(格式化为ext4)
mkfs.ext4 -L rootfs ${DISK}1
## Make sure posted writes are cleaned up
sync
sync
echo "Formatting done."

mkdir -p /media/rootfs/
mount ${DISK}1 /media/rootfs

mkdir -p /media/rootfs/opt/backup/uboot/
cp -v ${MLO} /media/rootfs/opt/backup/uboot/
cp -v ${ubootimg} /media/rootfs/opt/backup/uboot/
cp -v ${uEnvtxt} /media/rootfs/

tar xfvp ${filesystem} -C /media/rootfs
sync
sync
chown root:root /media/rootfs/
chmod 755 /media/rootfs/

cp -v ${uImage} /media/rootfs/boot/
echo "This uImage is for BeagleBoneBlack kernel. What different from Am335x_evmsk is where the filesysytem run. "
echo "Am335x_evmSk's filesysytem is running in sd's part 2."
echo "BeagleBoneBlack's filesystem is running in Sd's part 1."
cp -v ${uEnvtxt} /media/rootfs/boot/
mkdir -p /media/rootfs/boot/dtbs/
cp -v ${Beaglebonedtb} /media/rootfs/boot/dtbs

sh -c "echo '/dev/mmcblk0p1  /  auto  errors=remount-ro  0  1' >> /media/rootfs/etc/fstab"

sync
sync
umount /media/rootfs

这样BelageBoneBlack(am335x)板的启动SD卡制作成功了。

说明:1、运行此脚本需要root权限:sudo sh xxxxx.sh

   2、需要linux虚拟机的ubuntu知道SD卡的位置,比如lsblk,可以看出是sdb

3、若是已经分过区的SD卡,需要多次运行此脚本(至少两次,中间需要将SD卡拔下来在插入),自己经验得出,不适用所有的人。

 

参考网址:

http://eewiki.net/display/linuxonarm/BeagleBone+Black

 

posted @ 2017-10-20 13:35  竹主  阅读(3440)  评论(0编辑  收藏  举报