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Table 2. Source directories (continued)
Directory name Description
package All the user space packages (1800+)
fs Logic to generate file system images in various formats
boot Boot-loader packages
configs Default configuration files for various platforms
board Board-specific files (kernel configurations, patches, image flashing scripts, etc.)
support Miscellaneous utilities (kconfig code, libtool patches, download helpers, and more)
docs Documentation
Table 3. Build directories
Directory name Description
dl Path where all the source tarballs are downloaded
output Global output directory
output/build Path where all source tarballs are extracted and the build of each package takes place.
output/host Contains both the tools built for the host and the sysroot of the toolchain
output/staging A symbolic link to the sysroot, that is, to host/<tuple>/sysroot/ for convenience
output/target The target Linux root filesystem, used to generate the final root filesystem images
output/images Contains all the final images: kernel, bootloader, root file system, and so on
1.3.2 Host system requirements
OpenIL is designed to build in Linux systems. The following host environments have been verified to build the OpenIL.
• Ubuntu 16.10
• Ubuntu 16.04
• Ubuntu 14.04
• Ubuntu 18.04
While OpenIL itself builds most host packages it needs for the compilation, certain standard Linux utilities are expected to be
already installed on the host system. The following tables provide an overview of the mandatory and optional packages.
Package names listed in the following tables might vary between distributions.
NOTE
Table 4. Host system mandatory packages
Mandatory packages Remarks
which
sed
make Version 3.81 or later
binutils
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Introduction
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