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These metadata are combined with information in each package to determine (and resolve, if possible) dependencies among the packages. The hope is to avoid a situation known as dependency hell . A separate tool, createrepo , sets up YUM software repositories , generating the necessary metadata in a standard XML format (and the SQLite metadata if ...
Package metadata include package description, package version, and dependencies (other packages that need to be installed beforehand). Package managers are charged with the task of finding, installing, maintaining or uninstalling software packages upon the user's command. Typical functions of a package management system include:
ABS is used by Arch Linux to automate binary packages building from source or even other binary archives, with automatic download and dependency checking; apt-build is used by distributions which use deb packages , allowing automatic compiling and installation of software in a deb source repository;
urpmi is a package management tool for installing, removing, updating and querying software packages of local or remote (networked) media. It wraps around the RPM Package Manager in the role of a smart package manager.
RPM Package Manager (RPM) (originally Red Hat Package Manager, now a recursive acronym) is a free and open-source package management system. [6] The name RPM refers to the .rpm file format and the package manager program itself. RPM was intended primarily for Linux distributions; the file format is the baseline package format of the Linux ...
DNF (abbreviation for Dandified YUM) [7] [8] [9] is a package manager for Red Hat-based Linux distributions and derivatives. DNF was introduced in Fedora 18 in 2013 as a replacement for yum; [10] it has been the default package manager since Fedora 22 in 2015 [11] and Red Hat Enterprise Linux 8 [when?] [12] and is also an alternative package manager for Mageia.
The ebuild system takes care of the actual work of building and installing packages, while emerge provides an interface to ebuild: managing an ebuild repository, resolving dependencies and similar issues. (These two therefore have roughly the same relation as rpm has with yum, or dpkg has with APT.)
The typical configure, make, install cycle can become painfully slow as each configure improvement reveals another dependency not available in your default environment. This section includes the steps to install the Environment Modules package on source including compiling the Tcl from source as a dependency. [8]