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Installing Basic Libraries

Installing basic libraries creates an offline development environment with all necessary tools and dependencies for compiling, executing, and deploying software.

  1. Mount the OS image.
    mount YOUR_OS.iso /media -o loop

    Replace YOUR_OS.iso with the actual ISO file name.

  2. Back up and clear the /etc/yum.repos.d/ directory.
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    cp -r /etc/yum.repos.d /etc/yum.repos.d-bak
rm /etc/yum.repos.d/*

    Upon executing the deletion command, the system will prompt you for confirmation. Confirm that all .repo files have been backed up. Then, enter y at the prompt and press Enter to proceed.

  3. Configure a local Yum repository.
    1. Open the /etc/yum.repos.d/Local.repo file. 
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      vi /etc/yum.repos.d/Local.repo
    2. Press i to enter the insert mode and add the following content to the file: 
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      [Local]
name=Local
baseurl=file:///media/
enabled=1
gpgcheck=0
    3. Press Esc, type :wq!, and press Enter to save the file and exit.
    4. Make the Yum repository configuration take effect. 
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      yum clean all
yum makecache
  4. Install GCC and solve the -fsigned-char problem.
    1. Install GCC using the Yum repository. 
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      yum -y install gcc.aarch64 gcc-c++.aarch64 gcc-gfortran.aarch64 libgcc.aarch64
    2. Search for the directory where GCC is located. Generally, the directory is /usr/bin/gcc. 
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      command -v gcc
    3. Rename the original GCC file, for example, to gcc-impl. 
      mv /usr/bin/gcc /usr/bin/gcc-impl
    4. Configure the GCC file.
      1. Create a GCC file. 
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        vi /usr/bin/gcc
      2. Press i to enter the insert mode and add the following content to the file: 
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        #! /bin/sh
/usr/bin/gcc-impl -fsigned-char "$@"
      3. Press Esc, type :wq!, and press Enter to save the file and exit.
    5. Add the execute permission for the GCC file. 
      chmod +x /usr/bin/gcc
    6. Check whether GCC is available. 
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      gcc --version
      • CentOS: If the following information is displayed, the installation is successful.

      • openEuler: If the following information is displayed, the installation is successful.

  5. Modify G++ to solve the -fsigned-char problem.
    1. Search for the directory where G++ is located. Generally, the directory is /usr/bin/g++. 
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      command -v g++
    2. Rename the original G++ file, for example, to g++-impl. 
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      mv /usr/bin/g++ /usr/bin/g++-impl
    3. Configure the G++ file.
      1. Create a G++ file. 
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        vi /usr/bin/g++
      2. Press i to enter the insert mode and add the following content to the file: 
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        #! /bin/sh
/usr/bin/g++-impl -fsigned-char "$@"
      3. Press Esc, type :wq!, and press Enter to save the file and exit.
    4. Add the execute permission for the G++ file. 
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      chmod +x /usr/bin/g++
    5. Check whether G++ is available. 
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      g++ --version
      • CentOS: If the following information is displayed, the installation is successful.

      • openEuler: If the following information is displayed, the installation is successful.

  6. Install the dependencies required for the development environment.
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    yum install -y wget openssl-devel zlib-devel automake libtool make  libstdc++-static glibc-static git snappy snappy-devel fuse fuse-devel