Unpack the package, but don't configure it. See -configure for detailed information about how this Written at the same time old files are removed.Ħ. Is executed after the preinst script of the new package, because new files are Installation, execute the postrm script of the old package. If another version of the same package was installed before the new Something goes wrong, they can be restored.ĥ.

Unpack the new files, and at the same time back up the old files, so that if Run preinst script, if provided by the package.Ĥ. Installation, execute prerm script of the old package.ģ. Extract the control files of the new package.Ģ. Installation consists of the following steps:ġ. If -recursive or -R option is specified, package-file must These packagesĬannot be removed, unless forced with option -force-remove-reinstreq. Package flags ok A package marked ok is in a known state, but might need further processing.Ī package marked reinstreq is broken and requires reinstallation. Purge The package is selected to be purged (i.e. The package is selected for deinstallation (i.e. Hold A package marked to be on hold is not handled by dpkg, unless forced to do that

The package is selected for installation. The package is correctly unpacked and configured. The package awaits trigger processing by another package. The package is unpacked and configuration has been started, but not yet completed The package is unpacked, but not configured. The installation of the package has been started, but not completed for some Only the configuration files of the package exist on the system. The package is not installed on your system. The information isĭivided in three classes: states, selection states and flags. INFORMATION ABOUT PACKAGES dpkg maintains some usable information about available packages. Specific options are currently passed to them, to use any such option the back-ends need If any such action isĮncountered dpkg just runs dpkg-deb or dpkg-query with the parameters given to it, but no Supported actions can be found later on in the ACTIONS section. TheĪction-parameter tells dpkg what to do and options control the behavior of the action inĭpkg can also be used as a front-end to dpkg-deb(1) and dpkg-query(1). dpkg itself is controlled entirely viaĬommand line parameters, which consist of exactly one action and zero or more options. User-friendly front-end for dpkg is aptitude(1). The descriptions of what dpkg does when installing and removing packagesĭESCRIPTION dpkg is a tool to install, build, remove and manage Debian packages. It should not be used by package maintainers wishing to understand how dpkg will install Package states in more detail than that provided by dpkg -help. This manual is intended for users wishing to understand dpkg's command line options and

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