
==========================================
1. Compile Enviroment
==========================================
    My build envrioment is CentOS 7.8 x86_64. So here I first explain how to create the build environment from scratch.
    Because Ventoy is based on many open source projects, so the environment is important. I suggest you test it on a virtual machine first.

1.1 Install CentOS 7.8
    I use CentOS-7-x86_64-Everything-2003.iso and select Minimal install
    
1.2 Install Packages    
    yum install \
        libXpm net-tools bzip2 wget vim gcc gcc-c++ samba dos2unix glibc-devel glibc.i686 glibc-devel.i686 \
        mpfr.i686 mpfr-devel.i686 zlib.i686 rsync autogen autoconf automake libtool gettext* bison binutils \
        flex device-mapper-devel SDL libpciaccess libusb freetype freetype-devel gnu-free-* qemu-* virt-* \
        libvirt* vte* NetworkManager-bluetooth brlapi fuse-devel dejavu* gnu-efi* pesign shim \
        iscsi-initiator-utils grub2-tools zip nasm acpica-tools glibc-static zlib-static
    


==========================================
2. Download Source Code
==========================================
2.1 Download Ventoy source code from github and decompress it. 
    Next I assume that you have unzipped the code into the /home directory (check /home/Ventoy-master/README.md file for the directory level).
    
2.2 Download third-part source code
    
    https://www.fefe.de/dietlibc/dietlibc-0.34.tar.xz                    ===>  /home/Ventoy-master/DOC/dietlibc-0.34.tar.xz
    https://musl.libc.org/releases/musl-1.2.1.tar.gz                     ===>  /home/Ventoy-master/DOC/musl-1.2.1.tar.gz
    https://ftp.gnu.org/gnu/grub/grub-2.04.tar.xz                        ===>  /home/Ventoy-master/GRUB2/grub-2.04.tar.xz
    https://codeload.github.com/tianocore/edk2/zip/edk2-stable201911     ===>  /home/Ventoy-master/EDK2/edk2-edk2-stable201911.zip
    https://codeload.github.com/relan/exfat/zip/v1.3.0                   ===>  /home/Ventoy-master/ExFAT/exfat-1.3.0.zip
    https://codeload.github.com/libfuse/libfuse/zip/fuse-2.9.9           ===>  /home/Ventoy-master/ExFAT/libfuse-fuse-2.9.9.zip
    https://releases.linaro.org/components/toolchain/binaries/7.4-2019.02/aarch64-linux-gnu/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz           ===>  /opt/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz
    https://toolchains.bootlin.com/downloads/releases/toolchains/aarch64/tarballs/aarch64--uclibc--stable-2020.08-1.tar.bz2 ===> /opt/aarch64--uclibc--stable-2020.08-1.tar.bz2

2.3 Prepare third-part tools
    cd /home/Ventoy-master/DOC/
    tar xf musl-1.2.1.tar.gz
    cd musl-1.2.1
    ./configure && make install

    tar xf /opt/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz  -C /opt
    tar xf /opt/aarch64--uclibc--stable-2020.08-1.tar.bz2  -C /opt

2.4 Set PATH envrioment
    export PATH=$PATH:/opt/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu/bin:/opt/aarch64--uclibc--stable-2020.08-1/bin
    better to add this line to /root/.bashrc and relogin as root


==========================================
3. All in one script
==========================================
    I have made the whole build process in all_in_one.sh, you can run this script to build and pack ventoy.
    If you want to compile a certain part separately, you can continue to refer to the later chapters of this text.
    
    cd /home/Ventoy-master/INSTALL
    sh all_in_one.sh

    It should be noted that, some part of Ventoy has 32bit&64bit version (like 4.9 4.10 4.11 follows)
    all_in_one.sh only build 64bit version of them, if you want to rebuild the 32bit verison. You should create a 32bit CentOS environment and build them.
    Fortunately these parts are few modified, you only need to build once or you can directly use the binary I have built.

    Besides, after a fully compile and pack, you can only build the part you modified (for example grub2) and run ventoy_pack.sh to generate the package.



==========================================
4. Build every part of Ventoy
==========================================
4.1 == Build grub2 ==
    cd /home/Ventoy-master/GRUB2
    sh buildgrub.sh
      
4.2 == Build ipxe.krn ==
    cd /home/Ventoy-master/IPXE
    sh buildipxe.sh
      
4.3 == Build Ventoy2Disk.exe ==
    Ventoy2Disk.exe is the installer in Windows platform. And it must be built in Windows with Microsoft Visual Studio (2013+).   
    Open /home/Ventoy-master/Ventoy2Disk/Ventoy2Disk.sln with Visual Studio and build it.
   
4.4 == Build vtoyjump64.exe/vtoyjump32.exe ==
    vtoyjump64.exe/vtoyjump32.exe is used to mount iso file in windows PE. You should install Microsoft Visual Studio (2013+) to build it.
    Open /home/Ventoy-master/vtoyjump/vtoyjump.sln with Visual Studio and build it (64&32).
   
4.5 == Build dmsetup ==
    Please refer to DMSETUP/build.txt
   
4.6 == Build ventoy_x64.efi ==
    cd /home/Ventoy-master/EDK2
    sh buildedk.sh
   
4.7 == Build VtoyTool ==
    cd /home/Ventoy-master/VtoyTool
    sh build.sh

4.8 == Build vtoyfat ==    
    cd /home/Ventoy-master/vtoyfat/fat_io_lib
    sh buildlib.sh
    cd /home/Ventoy-master/vtoyfat
    sh build.sh

4.9 == Build exfat-util ==
    cd /home/Ventoy-master/ExFAT
    sh buidlibfuse.sh
    sh buidexfat.sh
    
    After that, copy EXFAT/shared/mkexfatfs         ===> /home/Ventoy-master/INSTALL/tool/mkexfatfs_64
    After that, copy EXFAT/shared/mount.exfat-fuse  ===> /home/Ventoy-master/INSTALL/tool/mount.exfat-fuse_64

    Use the same build step to build exfat-util 32bit in a 32bit CentOS system and get mkexfatfs_32 and mount.exfat-fuse_32

4.10 == Build vtoy_fuse_iso_64/vtoy_fuse_iso_32 ==
    cd /home/Ventoy-master/FUSEISO
    sh build_libfuse.sh
    sh build.sh
    
    Use the same build step to build in a 32bit CentOS system and get vtoy_fuse_iso_32
   
4.11 == Build unsquashfs_64/unsquashfs_32 ==
    cd /home/Ventoy-master/SQUASHFS/SRC
    sh build_lz4.sh
    sh build_lzma.sh
    sh build_lzo.sh
    sh build_zstd.sh
    
    cd /home/Ventoy-master/SQUASHFS/squashfs-tools-4.4/squashfs-tools
    sh build.sh
    
    Use the same build step to build in a 32bit CentOS system and get unsquashfs_32
   
4.12 == Build vblade_64/vblade_32 ==
    cd /home/Ventoy-master/VBLADE/vblade-master
    sh build.sh
   
4.13 == Build zstdcat ==
    Please refer to ZSTD/build.txt

4.14 == Build vtoy_gen_uuid ==
    cd /home/Ventoy-master/GenUUID
    sh build.sh
    
4.15 == Build xzminidec32 ==
   cd /home/Ventoy-master/Ventoy2Disk/Ventoy2Disk/xz-embedded-20130513/userspace
   make -f ventoy_makefile
   strip --strip-all xzminidec

4.16 == Build xzminidec64 ==
   cd /home/Ventoy-master/Ventoy2Disk/Ventoy2Disk/xz-embedded-20130513/userspace
   make -f ventoy_makefile64
   strip --strip-all xzminidec

4.17 == Build iso9660_x64.efi ==
   This efi driver is from https://github.com/pbatard/efifs
   Follow all the build instructions in this project. I modified 3 files (the original and modified source are at /home/Ventoy-master/EDK2/efiffs)

4.18 IMG/cpio/ventoy/busybox/64h
  https://www.uclibc.org/downloads/binaries/0.9.30.1/mini-native-x86_64.tar.bz2
  https://busybox.net/downloads/busybox-1.32.0.tar.bz2
  use BUSYBOX/x86_64_ash.config and uclibc to build busybox-1.32

4.19 == Build lunzip32/lunzip64 ==
  http://mirror.yongbok.net/nongnu/lzip/lunzip/lunzip-1.11.tar.gz
  PATH=$PATH:/opt/diet/bin
  ./configure --disable-nls CC='diet gcc -nostdinc'
  make
  strip --strip-all lunzip
  
  #aarch64
  ./configure --disable-nls CC='aarch64-buildroot-linux-uclibc-gcc -static'
  make
  aarch64-buildroot-linux-uclibc-strip --strip-all lunzip



==========================================
5. Binaries
==========================================
  There some binaries in Ventoy install package. These files are downloaded from other open source project's website, such as busybox.
  Here is the list of the binaries, their SHA-256 and the download urls:   

5.1 IMG/cpio/ventoy/tool/lz4cat
  https://create.stephan-brumme.com/smallz4   smallz4cat-x32-v1.4
  SHA-256: 13d293ddeedb469f51da41167f79b2cbdb904e681716f6e6191b233dbb162438
   
5.2 IMG/cpio/ventoy/tool/ar
  https://busybox.net/downloads/binaries/1.30.0-i686   busybox_AR
  SHA-256: f29b7d81a983c0c85d22496f4a833c18f2528a1b666eb7d47c93084c1ed66ae0  
  
5.3 IMG/cpio/ventoy/tool/inotifyd
  https://busybox.net/downloads/binaries/1.30.0-i686   busybox_INOTIFYD
  SHA-256: 3532162a8695e91a1ed9ddea28b2cb22259a90e93d5d9c4a517b6c36842c686f  

5.4 IMG/cpio/ventoy/busybox/ash
  https://busybox.net/downloads/binaries/1.27.1-i686   busybox_ASH
  SHA-256: 44a6274bca580c2758ffc173fc76d18bb855b1fe8dcf70efd9ee75cbd57dee97  

5.5 IMG/cpio/ventoy/busybox/tmpxz
  https://busybox.net/downloads/binaries/1.27.1-i686   busybox_XZ
  SHA-256: f6cdb6293680424c29b89bde0685ca27f455166c9b302cd6082ef90681456291  

5.6 INSTALL/tool/i386/xzcat
  https://busybox.net/downloads/binaries/1.30.0-i686/   busybox_XZCAT
  SHA-256: 7399db642c2beaf52a16ab5264ffc55cfd1ff5699a524f63e5d48edf84e20f44  
  
5.7 INSTALL/tool/i386/hexdump
  https://busybox.net/downloads/binaries/1.30.0-i686/   busybox_HEXDUMP
  SHA-256: cde08b6a2cf5ad914f05203e18e3f7c2ed6060a63604e3d75536f19b55e8e0af  

5.8 imdisk
  download http://www.ltr-data.se/files/imdiskinst.exe and extract it by 7zip.
  
  INSTALL/ventoy/imdisk/64/imdisk.sys --> sys/amd64/imdisk.sys  SHA-256: 6702202220268787e361f5a82dae53362c8e6c6dcd240bb01b44dd77ae0788da
  INSTALL/ventoy/imdisk/64/imdisk.exe --> cli/amd64/imdisk.exe  SHA-256: 9759175380af836869443e5f21ce2e33022125d154bc6b3d1c04dc36b190de04
  INSTALL/ventoy/imdisk/64/imdisk.cpl --> cpl/amd64/imdisk.cpl  SHA-256: aea2ebbea2b073c947263744962af8a3eab025ff4c9d825c543e380e738a4c99
  
  INSTALL/ventoy/imdisk/32/imdisk.sys --> sys/i386/imdisk.sys  SHA-256: a94caec2f71a924d6a914c093ad4b905d7cfdea3f515ed48aaa8c3950b2dc191
  INSTALL/ventoy/imdisk/32/imdisk.exe --> cli/i386/imdisk.exe  SHA-256: 33b53858e2139704cf603b115a3e5e1dfd4daeaaed4d3e03c633f2df3b55dbaa
  INSTALL/ventoy/imdisk/32/imdisk.cpl --> cpl/i386/imdisk.cpl  SHA-256: b781d3e2d286ac8bf548f44e50cbbb3fe78203296e41e4d2e73b407668f88f2d
  
5.9 INSTALL/ventoy/memdisk
  https://mirrors.edge.kernel.org/pub/linux/utils/boot/syslinux/syslinux-6.03.tar.gz
  decompress it and memdisk is at syslinux-6.03/bios/memdisk/memdisk
  SHA-256: 3f6cd656b8a14109cd3f906fee2dd2e75418f983a5e1bfdb64f44f7765588cbb
  

5.10 UEFIinSecureBoot
 https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk/releases   Super-UEFIinSecureBoot-Disk_minimal_v3.zip
 unzip it and get Super-UEFIinSecureBoot-Disk_minimal.img, extract the img by 7zip.
 
 INSTALL/EFI/BOOT/BOOTX64.EFI --> EFI/BOOT/BOOTX64.EFI  SHA-256: 475552c7476ad45e42344eee8b30d44c264d200ac2468428aa86fc8795fb6e34
 INSTALL/EFI/BOOT/grubx64.efi --> EFI/BOOT/grubx64.efi  SHA-256: 25d858157349dc52fa70f3cdf5c62fe1e0bae37ddfc3a6b6528af9a3c745775f
 INSTALL/EFI/BOOT/MokManager.efi --> EFI/BOOT/MokManager.efi  SHA-256: 3bf1f46cee0832355c7dd1dba880dea9bcaa78cc44375a1559d43bc9db18933b


5.11 INSTALL/tool/ash
 https://busybox.net/downloads/binaries/1.31.0-i686-uclibc/   busybox_ASH
 SHA-256: 2943f02f85fee0c9551aec47110a558a73f919c032b3c51e56d6f197b5ec4d7b  
   
5.12 7za.exe
 download from https://www.7-zip.org/a/7z1900-extra.7z
 ISNTALL/ventoy/7z/64/7za.exe  SHA-256: 8117e40ee7f824f63373a4f5625bb62749f69159d0c449b3ce2f35aad3b83549
 ISNTALL/ventoy/7z/32/7za.exe  SHA-256: ea308c76a2f927b160a143d94072b0dce232e04b751f0c6432a94e05164e716d
 


