deb-postinst - package post-installation maintainer script

A package can perform several post-installation actions via maintainer scripts, by including an executable postinst file in its control archive (i.e. DEBIAN/postinst during package creation). The script can be called in the following ways: postinstconfigureold-version After the package was installed. postinsttriggered "trigger-name..." After the package was triggered. The list of space-separated trigger-names is passed as the second argument. old-postinstabort-upgradenew-version If prerm fails during upgrade or fails on failed-upgrade. old-postinstabort-remove If prerm fails during remove. postinstabort-deconfigurein-favournew-packagenew-version [ removingold-packageold-version ] If prerm fails during deconfigurein-favour of a package. postinstabort-removein-favournew-packagenew-version If prerm fails during removein-favour for replacement due to conflict.

deb-postinst - package post-installation maintainer script

dpkg(1). 1.22.21 2025-07-14 deb-postinst(5)