man > deb-postinst(5)

deb-postinst(5)                              dpkg suite                              deb-postinst(5)

NAME
       deb-postinst - package post-installation maintainer script

SYNOPSIS
       DEBIAN/postinst

DESCRIPTION
       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:

       postinst configure old-version
           After the package was installed.

       postinst triggered "trigger-name..."
           After  the package was triggered.  The list of space-separated trigger-names is passed as
           the second argument.

       old-postinst abort-upgrade new-version
           If prerm fails during upgrade or fails on failed-upgrade.

       old-postinst abort-remove
           If prerm fails during remove.

       postinst abort-deconfigure in-favour new-package new-version
              [ removing old-package old-version ]
           If prerm fails during deconfigure in-favour of a package.

       postinst abort-remove in-favour new-package new-version
           If prerm fails during remove in-favour for replacement due to conflict.

SEE ALSO
       dpkg(1).

1.22.6                                       2026-05-06                              deb-postinst(5)