Relase iso guide

一、Prepare

1. Download and decompress an Ubuntu ISO image.

   //最好新建一个文件夹在其文件夹下面解压
   mkdir fenglin
   cd fenglin
   7z  x    ****.ISO
   

2. Enter the casper file, there should be an initrd.lz, an vmlinuz.efi, and filesystem.squashfs. They are the files we need to modify.

   cd casper/
   

二、Update squashfs

1. Decompress filesystem.squashfs

    unsquashfs filesystem.squashfs
   

2. 进行挂载

    mount --bind /run ./squashfs-root/run
    mount --bind /dev ./squashfs-root/dev
    mount --bind /proc ./squashfs-root/proc
    mount --bind /sys ./squashfs-root/sys
   

3. 切换成root

    chroot ./squashfs-root
   

4. 备份一个本机的源，后面还要更改回来，并更新

   cd   etc/apt/
   mv  sources.list sources.list.bak  //备份一个本机的源   
   
   //重新登录host主机将在Tools目录下将source.list拷贝到casper这个系统
   cp /Tools/18.04-sources.list  fenglin/casper/squashfs-root/etc/apt/sources.list //拷贝一个内部Intel的源
   	
   //在casper这个系统执行
   apt-get update
   

5. 安装一些必要的包

   apt install vim  gcc  git -y
   

6. vim /etc/environment添加：

   export GIT_PROXY_COMMAND=/usr/local/bin/git-proxy.sh
   export no_proxy="localhost,127.0.0.1,.intel.com"
   export http_proxy="http://child-prc.intel.com:913/"
   export https_proxy="http://child-prc.intel.com:913/"
   export ftp_proxy="http://child-prc.intel.com:913/"
   

7. 配置git 代理

    cp /Tools/git-proxy.sh  fenglin/casper/squashfs-root/usr/local/bin/
    source /etc/environment
   

8. 编译connect.c文件

    cp /Tools/connect.c  fenglin/casper/squashfs-root/usr/local/bin/connect.c
    gcc /usr/local/bin/connect.c -o /usr/bin/connect
   

三、Build Kernel

1. Install packages here

   apt-get install libepoxy-dev libdrm-dev libgbm-dev spice-client-gtk libegl1-mesa-dev libgtk2.0-dev bin86 bcc iasl uuid-dev libncurses-dev libyajl-dev libc6-dev-i386  -y
   

2. Build the initrd (initial ramdisk)

   Use Ubuntu as example, modify /etc/initramfs-tools/modules, like below（加入如下命令）:

    vim /etc/initramfs-tools/modules
   	
    kvmgt
    xengt	
    vfio-iommu-type1		
    vfio-mdev
   

   For Fedora or RHEL you should make the similar changes in “dracut”.

3. Build Kernel Source

    在/root目录下操作最好
   
    git clone https://github.com/intel/gvt-linux.git		
    cd gvt-linux		
    git checkout gvt-stable-4.17	
    apt install bison flex -y	
    echo ""|make oldconfig   //如果这个步骤有错需要安装依赖包 apt install bison flex -y
   	
    有错误也没事，只要出现下面的就可以了
   	
    #
    # configuration written to .config
    #
   

4. Then make sure to enable these parameters in “.config”

    CONFIG_OVERLAY_FS=y
    CONFIG_DRM_I915_GVT=y
    CONFIG_DRM_I915_GVT_KVMGT=y
    CONFIG_DRM_I915_GVT_XENGT=y
    CONFIG_XEN_PVHVM=n
   
    CONFIG_VFIO_MDEV=y
    CONFIG_VFIO_MDEV_DEVICE=y
   

5. 安装依赖包

    apt-get install git libfdt-dev libpixman-1-dev libssl-dev vim socat libsdl1.2-dev libspice-server-dev autoconf libtool xtightvncviewer tightvncserver x11vnc libsdl1.2-dev uuid-runtime uuid uml-utilities bridge-utils python-dev liblzma-dev libc6-dev libegl1-mesa-dev libepoxy-dev libdrm-dev libgbm-dev libelf-dev libsdl2-dev -y
   

6. 生成 Kernel 并安装的两种方法

   一：

    make -j8 && make modules_install && make install
   

   二：If you use Ubuntu, you can generate the kernel debian package directly and install it with below commands:

    make -j8 deb-pkg
    cd ..
    dpkg -i linux-image-4.17.0+_4.17.0+-2_amd64.deb  //注意安装的是生成的linux-image-xxxxx
   

四、Build Qemu

1. Build Qemu for KVMGT

   //put igvtg-qemu and igvtg-xen directory right under `/root`, 
   otherwise some path problems would occur later 
   
   cd /root     
    
   git clone https://github.com/intel/igvtg-qemu
   
   cd igvtg-qemu
   	
   git checkout stable-2.12.0
   	
   git submodule update --init roms/seabios
   	
   ./configure --prefix=/usr       \
   --enable-kvm            \
   --disable-xen           \
   --enable-debug-info     \
   --enable-debug          \
   --enable-sdl            \
   --enable-vhost-net      \
   --enable-spice          \
   --disable-debug-tcg     \
   --enable-opengl         \
   --target-list=x86_64-softmmu
   	
   make -j8
   	
   cd roms/seabios
   	
   make -j8
   	
   cd -
   	
   make install
   	
   cp roms/seabios/out/bios.bin /usr/bin/bios.bin
   
   cd /root
   
   rm -rf igvtg-qemu
   

2. Build Qemu & Xen for XenGT

   cd /root
   
   git clone https://github.com/intel/igvtg-xen
   
   cd igvtg-xen
   	
   git checkout xengt-stable-4.10
   	
   git clone https://github.com/intel/igvtg-qemu
   	
   cd igvtg-qemu
   	
   git checkout stable-2.12.0
   	
   cd ..
   	
   sed -i 's/\(QEMU_UPSTREAM_REVISION ?= \).*/\1origin\/stable-2.12.0/g' Config.mk
   	
   sed -i 's/\(QEMU_UPSTREAM_URL ?= \).*/\1file:\/\/localhost\/root\/igvtg-xen\/igvtg-qemu/g' Config.mk
   	
   ./autogen.sh
   	
   ./configure --prefix=/usr
   	
   make -j8 xen tools
   	
   make install-tools
   	
   cp xen/xen.gz /boot/xen-gvt.gz
   

3. Delete gvt-linux, and igvtg-xen directories.

4. Delete old kernels and bash history, then exit and umount everything.

    查询系统中装了多少内核
    dpkg --get-selections|grep linux
       
    多余的内核可以通过命令删除 需要删除header和image		
    sudo apt-get remove linux-image-*.*.*-**（*号用你想删除的实际情况改写）
    sudo apt-get remove linux-headers-*.*.*-**（*号用你想删除的实际情况改写）
   
    执行完上面命令后再次执行
    dpkg --get-selections | grep linux
   
    查看内核是否都删除干净了。没干净继续删除。有的内核后面会显示是deinstall 那需要通过
    sudo dpkg --get-selections | grep deinstall | sed 's/deinstall/\lpurge/' | sudo dpkg --set-selections; sudo dpkg -Pa
   
    通过上面方法就可以。
   

5. 在/etc/apt/目录下换成默认的sources.list，将之前 备份的改回来。

6. apt-get update

7. vim /etc/environment删掉添加的：

   export GIT_PROXY_COMMAND=/usr/local/bin/git-proxy.sh
   export no_proxy="localhost,127.0.0.1,.intel.com"
   export http_proxy="http://child-prc.intel.com:913/"
   export https_proxy="http://child-prc.intel.com:913/"
   export ftp_proxy="http://child-prc.intel.com:913/"      
   

8. 删掉 /usr/local/bin/git-proxy.sh

9. 删掉 /usr/bin/connect 、 /usr/local/bin/connect.c

10. 清除历史，并退出,然后取消挂载。

    history -c
    exit
    
    umount  squashfs-root/run
    umount squashfs-root/dev
    umount squashfs-root/proc
    umount squashfs-root/sys    //不能取消挂载直接重启即可
    

11. 拷贝/Tools/下面的grub.d 到 fenglin/casper/squashfs-root/etc/grub.d 来替换.

    cd /Tools
    cp grub.d /home/fei/fenglin/casper/squashfs-root/etc/  -r
    

12. 拷贝/Tools/下面的scripts 到 fenglin/casper/squashfs-root/usr/share/script, 并且将/Tools/Launch_Guest.desktop 拷贝到 fenglin/squashfs-root/usr/share/applications/.

    cp script /home/fei/fenglin/casper/squashfs-root/usr/share/ -r
    cp Launch_Guest.desktop /home/fei/fenglin/casper/squashfs-root/usr/share/applications/
    

13. Copy out

    fenglin/casper/squashfs-root/lib/modules/$YOUR_MODULES   //cp fenglin/casper/squashfs-root/lib/modules/4.17.0+  /root -r
    fenglin/casper/squashfs-root/usr/lib/syslinux/modules/efi64/mboot.c32   //find ./ -name mboot.c32  注意是efi64
    fenglin/casper/squashfs-root/boot/vmlinuz-4.17.0+ 
    fenglin/casper/squashfs-root/boot/xen-gvt.gz
    

14. 删除以前的filesystem.squashfs

    进入 fenglin/casper下面删掉filesystem.squashfs

15. 压缩现在修改好的squashfs-root

    mksquashfs squashfs-root filesystem.squashfs

16. 删掉squashfs-root

    rm -rf squashfs-root/

Update initrd

1. 将fenglin/casper/下面的initrd.lz拷贝出来然后将拷贝出来的重命名

    cp initrd.lz  /root/
    cd /root 
    mv initrd.lz initrd.lzma  //在目录下新建一个目录，下一步会解压很多文件出来
    lzma -d initrd.lzma
    cpio -idmv < initrd
    rm initrd
   

2. Remove lib/modules/*, and then copy $YOUR_MODULES there.

   rm -rf lib/modules/*
   cp ../4.17.0+  ./lib/modules/  -r
   

3. In scripts/casper-bottom/25adduser, around line 81, add the files you want to copy to the desktop.

   vim  scripts/casper-bottom/25adduser
   
   for file in /usr/share/applications/ubiquity.desktop /usr/share/applications/kde4/ubiquity-kdeui.desktop \
       /usr/share/script/GVT-g_Setup_Guide.md /usr/share/applications/Launch_Guest.desktop /usr/share/script/README /usr/share/script/Combined_boot.sh; do
       if [ -f "/root/$file" ]; then
           sed -i "s/RELEASE/$RELEASE/" "/root$file"
           chroot /root install -d -o $USERNAME -g $USERNAME /home/$USERNAME/Desktop
           chroot /root install -D -o $USERNAME -g $USERNAME $file /home/$USERNAME/Desktop/$(basename "$file")
           break
       fi
   done
   

4. Repackage initrd.lz

     find ./* | cpio -H newc -o > ../initrd
     lzma initrd 
     mv initrd.lzma initrd.lz
   

Update files in /casper

1. 用新的替换fenglin/casper下面的文件

   mv vmlinuz-4.17.0+   vmlinuz.efi  //更改之后就不需要修改后面的配置文件了，然后再替换到fenglin/casper下面
   filesystem.squashfs  //前面已经替换过
   initrd.lz
   	
   注意删除fenglin/casper下面以前的vmlinuz
   

2. 在目录fenglin/casper下面添加刚刚拷贝出去的两个文件

     xen-gvt.gz 
     mboot.c32
   

Modify ISO GRUB

1. 将/Tools下面的grub.cfg 、 txt.cfg替换到如下目录，并注意修改其中的内容：

    切换到 fenglin目录下
    cp /Tools/grub.cfg  ./boot/grub/grub.cfg      //注意一定是/boot下面的grub
    cp /Tools/txt.cfg  ./isolinux/txt.cfg
   
    按照需求修改grub.cfg     //修改4处
               txt.cfg      //修改3处
   

Repackage ISO

1. 将my.bin拷贝到fenglin目录的上一层

    Find my.bin to support booting from ISO.
   

2. 在fenglin目录下，利用上一层的my.bin，并将ISO文件生成到上一层目录，执行如下命令：

      xorriso -as mkisofs -isohybrid-mbr ../my.bin -D -r -V "Intel GVT-g" -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -o ../ISO_NAME.iso .
      //注意修改ISO_NAME.iso是你行要生成的ISO文件名字。
   

制作U盘启动，在Linux上利用Startup Disk 工具：

	 1. CD-Driver/image 选择制作好的ISO
	 2. Device 选择U盘
	 3. Make  Startup Disk

装系统

	 选择 Install Intel GVT-g

东方闪电