本地RedHat 6系统下安装R语言rgdal包的依赖配置求助

Got it, let's tackle this rgdal installation issue head-on. Since you're on a local Red Hat 6 server with no internet and limited repo access, we'll need to build all dependencies from source—starting with PROJ.4 and GDAL, then moving to rgdal itself. Here's the step-by-step process:

1. Install Required Compilation Tools First #

Red Hat 6 needs basic build tools to compile source code. If these aren't already installed, you'll need to grab their RPMs from a trusted source (e.g., a connected machine with Red Hat 6 media) and transfer them to your server:

• Check for gcc: gcc --version
  • If missing: Install with rpm -ivh gcc-4.4.7-23.el6.x86_64.rpm (adjust version to match your system)
• Check for make: make --version
  • If missing: Install with rpm -ivh make-3.81-23.el6.x86_64.rpm
• Install gcc-c++ (required for some GDAL components): rpm -ivh gcc-c++-4.4.7-23.el6.x86_64.rpm

2. Build and Install PROJ.4 from Source #

rgdal requires PROJ.4 (or newer PROJ versions) as a core dependency. We'll install it to a custom path to avoid conflicts with system packages:

• Download a compatible PROJ version (e.g., 6.2.1, which works with Red Hat 6 and later rgdal versions) from a connected machine, then transfer the proj-6.2.1.tar.gz file to your server.
• Extract the source:

  tar -xvf proj-6.2.1.tar.gz
  cd proj-6.2.1
  

• Configure the build (specify an install path like /usr/local/proj):

  ./configure --prefix=/usr/local/proj
  

• Compile and install:

  make && make install
  

• Update your environment variables so the system can find PROJ:

  echo 'export LD_LIBRARY_PATH=/usr/local/proj/lib:$LD_LIBRARY_PATH' >> ~/.bashrc
  echo 'export PATH=/usr/local/proj/bin:$PATH' >> ~/.bashrc
  source ~/.bashrc
  

3. Build and Install GDAL from Source #

Next, install GDAL, which relies on the PROJ we just set up:

• Download a compatible GDAL version (e.g., 3.0.4, which pairs well with PROJ 6.2.1) as a tar.gz file, transfer it to your server.
• Extract the source:

  tar -xvf gdal-3.0.4.tar.gz
  cd gdal-3.0.4
  

• Configure the build, pointing it to our custom PROJ installation:

  ./configure --prefix=/usr/local/gdal --with-proj=/usr/local/proj
  

• Compile and install:

  make && make install
  

• Update environment variables for GDAL:

  echo 'export LD_LIBRARY_PATH=/usr/local/gdal/lib:$LD_LIBRARY_PATH' >> ~/.bashrc
  echo 'export PATH=/usr/local/gdal/bin:$PATH' >> ~/.bashrc
  source ~/.bashrc
  

4. Install rgdal from Source in R #

Finally, we can install the rgdal R package using the dependencies we built:

• Download the rgdal source package (e.g., rgdal_1.5-28.tar.gz) from CRAN on a connected machine, transfer it to your server.
• Launch R:

  R
  

• Run the installation command, specifying the paths to GDAL and PROJ:

  install.packages("rgdal_1.5-28.tar.gz", type = "source",
                   configure.args = c("--with-gdal=/usr/local/gdal",
                                     "--with-proj=/usr/local/proj",
                                     "--with-proj-lib=/usr/local/proj/lib",
                                     "--with-proj-include=/usr/local/proj/include"))
  

• Verify the installation works:

  library(rgdal)
  

  If no errors pop up, you're good to go!

内容的提问来源于stack exchange，提问作者Carole