File System Layout
In this chapter, we will review directories and files common to all Adélie Linux systems. Adélie Linux is based on the Filesystem Hierarchy Standard (FHS) 3.0 specification; directories and files specified in FHS are not covered here.
<filename class="directory">/etc</filename>: Host-specific system configuration
Purpose
As in FHS, the /etc hierarchy contains configuration files specific to a single host.
Requirements
The following directories, or symbolic links to directories, must be present in /etc:
Directories required in <filename class="directory">/etc</filename>
Directory
Description
apk
Configuration for the package manager
The following files, or symbolic links to files, must be present in /etc:
Files required in <filename class="directory">/etc</filename>
File
Description
adelie-release
Version and release information about the currently installed system software
Specific Options
The following files, or symbolic links to files, must be present in /etc, if the corresponding subsystem is installed:
Files optional in <filename class="directory">/etc</filename>
File
Description
abuild.conf
Configuration for building packages (optional)
inputrc
Configuration for Bash shell (optional)
ld-musl-$ARCH.path
Additional search paths for the dynamic linker (optional)
<filename class="directory">/etc/apk</filename>: Configuration files for the package manager
Purpose
/etc/apk is used for configuring the Adélie Linux package manager, as described in .
Requirements
The following directories, or symbolic links to directories, must be present in /etc/apk:
Directories required in <filename class="directory">/etc/apk</filename>
Directory
Description
keys
Public keys for the repositories listed in repositories to ensure package integrity
The following files, or symbolic links to files, must be present in /etc/apk:
Files required in <filename class="directory">/etc/apk</filename>
File
Description
repositories
A list of repositories for search and retrieval of packages
world
A list of packages currently required for the host