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When packages are being installed, debconf asks the user questions which determine the contents of the system-wide configuration files associated with that package. After package installation, it is possible to go back and change the configuration of a package by using the dpkg-reconfigure program, or another program such as Synaptic.
Notably, APT automatically gets and installs packages upon which the indicated package depends (if necessary). This was an original distinguishing characteristic of APT-based package management systems, as it avoided installation failure due to missing dependencies, a type of dependency hell.
Diagram showing an example file structure of a .deb file Frhed hex editor displaying the raw data of a Debian package. Prior to Debian 0.93, a package consisted of a file header and two concatenated gzip archives. [6] Since Debian 0.93, a deb package is implemented as an ar archive. [7] This archive contains three files in a specific order: [8] [9]
dpkg-shlibdeps calculates the dependencies of runs with respect to libraries. dpkg-genchanges reads the information from an unpacked Debian tree source that once constructed creates a control file (.changes). dpkg-buildpackage is a control script that can be used to construct the package automatically. dpkg-distaddfile adds a file input to ...
A source package is created using the dpkg-buildpackage tool or its wrapper debuild. When invoked to create a source package, dpkg-buildpackage calls the maintainer's rules to clean the source tree of any intermediate files, does various sanity checks, and finally, signs the dsc file with the packager's key using the debsign utility.
Dependency hell is a colloquial term for the frustration of some software users who have installed software packages which have dependencies on specific versions of other software packages. [ 1 ] The dependency issue arises when several packages have dependencies on the same shared packages or libraries, but they depend on different and ...
A full install of Debian to the computer's hard drive can be initiated from the live image environment. [116] Personalized images can be built with the live-build tool for discs, USB drives and for network booting purposes. [117] Installation images are hybrid on some architectures and can be used to create a bootable USB drive . [118]
slapt-get builds functionality on top of the native Slackware package tools (installpkg, upgradepkg and removepkg) enabling package query, remote fetching, system updates, integrated changelog information, and many optional advanced features [3] such as dependency resolution, package conflicts, suggestions, checksum and public key verification, and transfer resumption.