此篇编译跟我姐系统
下载busybox和dropbear，
[#73#13:04:52 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS]$wget --no-check-certificate https://git.busybox.net/busybox/snapshot/busybox-1_23_1.tar.gz
--2017-08-14 13:04:56-- https://git.busybox.net/busybox/snapshot/busybox-1_23_1.tar.gz
Resolving git.busybox.net (git.busybox.net)... 140.211.167.122
Connecting to git.busybox.net (git.busybox.net)|140.211.167.122|:443... connected.
WARNING: no certificate subject alternative name matches
requested host name `git.busybox.net‘.
HTTP request sent, awaiting response... 200 OK
Length: unspecified [application/x-gzip]
Saving to: `busybox-1_23_1.tar.gz‘
[ <=> ] 2,800,283 230K/s in 13s
2017-08-14 13:05:14 (211 KB/s) - `busybox-1_23_1.tar.gz‘ saved [2800283]
[#74#13:05:14 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS]$wget http://matt.ucc.asn.au/dropbear/releases/dropbear-0.53.1.tar.gz --2017-08-14 13:06:25-- http://matt.ucc.asn.au/dropbear/releases/dropbear-0.53.1.tar.gz Resolving matt.ucc.asn.au (matt.ucc.asn.au)... 130.95.13.18, 2405:3c00:5200:100::18 Connecting to matt.ucc.asn.au (matt.ucc.asn.au)|130.95.13.18|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 1772583 (1.7M) [application/x-gzip] Saving to: `dropbear-0.53.1.tar.gz‘ 100%[===================================================================>] 1,772,583 156K/s in 12s 2017-08-14 13:06:39 (143 KB/s) - `dropbear-0.53.1.tar.gz‘ saved [1772583/1772583]
在busybox目录下，默认配置并初始化
make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- defconfig
可视化配置
make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- menuconfig
安装根文件系统到指定目录
make ARCH=arm CROSS_COMPILE=arm-xilinx-linux-gnueabi- install
在dropbear目录下配置dropbear
/home/fpgadeveloper/Zybo_Demo/XilinxFS/dropbear-0.53.1
./configure --prefix=/home/fpgadeveloper/Zybo_Demo/XilinxFS/RootFS --host=arm-xilinx-linux-gnueabi --disable-zlib CC=arm-xilinx-linux-gnueabi-gcc LDFLAGS="-Wl,--gc-sections" CFLAGS="-ffunction-sections -fdata-sections -Os"
编译dropbear
make PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp" MULTI=1 strip
安装dropbear并创建符号链接
sudo make install
建立软连接，进入/home/fpgadeveloper/Zybo_Demo/XilinxFS/RootFS/usr/bin
[#23#23:28:47 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/bin]$ln -s ../../sbin/dropbear ./scp
将交叉编译库拷贝到下述目录
sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/lib/* lib -r
sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/sbin/* sbin -r
sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/usr/bin/* usr/bin/ -r
[#123#23:37:50 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$mkdir lib [#124#23:38:30 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/lib/* lib -r [#125#23:38:33 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/sbin/* sbin -r [#126#23:38:35 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/usr/bin/* usr/bin/ -r
在usr目录下创建lib目录
[#125#23:38:33 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$cd usr/ [#126#23:42:37 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr]$ls bin sbin [#127#23:42:39 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr]$mkdir lib [#128#23:42:43 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr]$ls bin lib sbin
sudo cp ~/ SDK2015 /lin/arm-xilinx-linux-gnueabi/libc/usr/lib/* usr/lib/ -r
进入到usr/lib路径下，删除
sudo rm -rf locale
sudo rm -rf audit
sudo rm -rf bin
sudo rm -rf gconv
sudo rm *.a
sudo rm *.o
[#132#23:43:42 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$sudo cp ~/SDK2015/lin/arm-xilinx-linux-gnueabi/libc/usr/lib/* usr/lib/ -r [#133#23:45:12 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS]$cd usr/lib/ [#134#23:46:52 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm -rf locale [#135#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm -rf audit [#136#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm -rf bin [#137#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm -rf gconv [#138#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm *.a [#139#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$sudo rm *.o [#140#23:47:00 FPGADeveloper@ubuntu ~/Zybo_Demo/XilinxFS/RootFS/usr/lib]$
在文件根目录下运行
mkdir dev etc etc/dropbear etc/init.d mnt opt proc root sys tmp var var/log var/www
其中文件都用Xilinx提供的ramdisk里面的文件，并拷贝到相关文件夹中
创建"etc/fstab"文件，内容如下
touch etc/fstab
touch etc/fstab echo "LABEL=/ / tmpfs defaults 0 0 " >> etc/fstab echo "none /dev/pts devpts gid=5,mode=620 0 0 " >> etc/fstab echo "none /proc proc defaults 0 0 " >> etc/fstab echo "none /sys sysfs defaults 0 0 " >> etc/fstab echo "none /tmp tmpfs defaults 0 0 " >> etc/fstab
创建"etc/inittab"文件，内容如下
touch etc/inittab echo "::sysinit:/etc/init.d/rcS " >> etc/inittab echo "# /bin/ash " >> etc/inittab echo "# " >> etc/inittab echo "# Start an askfirst shell on the serial ports" >> etc/inittab echo "ttyPS0::respawn:-/bin/ash " >> etc/inittab echo "# What to do when restarting the init process" >> etc/inittab echo "::restart:/sbin/init " >> etc/inittab echo "# What to do before rebooting " >> etc/inittab echo "::shutdown:/bin/umount -a -r " >> etc/inittab
创建"etc/passwd"文件，内容如下
touch etc/passwd echo "root:$1$qC.CEbjC$SVJyqm.IG.gkElhaeM.FD0:0:0:root:/root:/bin/sh" >> etc/passwd
创建文件"etc/init.d/rcS" ，内容如下
#!/bin/sh echo "Starting rcS..." echo "++ Mounting filesystem" mount -t proc none /proc mount -t sysfs none /sys mount -t tmpfs none /tmp echo "++ Setting up mdev" echo /sbin/mdev > /proc/sys/kernel/hotplug mdev -s mkdir -p /dev/pts mkdir -p /dev/i2c mount -t devpts devpts /dev/pts echo "++ Starting telnet daemon" telnetd -l /bin/sh echo "++ Starting http daemon" httpd -h /var/www echo "++ Starting ftp daemon" tcpsvd 0:21 ftpd ftpd -w /& echo "++ Starting dropbear (ssh) daemon" dropbear echo "rcS Complete"
修改权限
sudo chmod 755 etc/init.d/rcS
sudo chown root:root etc/init.d/rcS
制作文件系统
dd if=/dev/zero of=ramdisknew.image bs=1024 count=32768 mke2fs -F ramdisknew.image -L "ramdisk" -b 1024 -m 0 tune2fs ramdisknew.image -i 0 chmod a+rwx ramdisknew.image sudo mount -o loop ramdisknew.image tmp_mnt_new/ sudo cp -R /home/fpgadeveloper/Zybo_Demo/XilinxFS/RootFS/* tmp_mnt_new/ cd tmp_mnt_new cd bin/ sudo cp -rf /home/fpgadeveloper/Zybo_Demo/UART_Tools/lrzsz-0.12.20/src/lrz . sudo cp -rf /home/fpgadeveloper/Zybo_Demo/UART_Tools/lrzsz-0.12.20/src/lsz . cd .. cd .. sudo umount tmp_mnt_new gzip ramdisknew.image mkimage -A arm -T ramdisk -C gzip -d ramdisknew.image.gz uramdisk.image.gz
拷贝uboot dtb *uramdisk.image.gz uImage等文件，在SDK环境下合并
可通过qspi flash 或者SD卡启动进行系统加载
