deb-preinst (5)

Leading comments

dpkg manual page - deb-preinst(5)

Copyright © 2016 Guillem Jover <guillem@debian.org>

This is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See...

(The comments found at the beginning of the groff file "man5/deb-preinst.5".)

NAME

deb-preinst - package pre-installation maintainer script

SYNOPSIS

preinst

DESCRIPTION

A package can perform several pre-installation actions via maintainer scripts, by including an executable preinst file in its control archive (i.e. DEBIAN/preinst during package creation).

The script can be called in the following ways:

new-preinst install

Before the package is installed.

new-preinst install old-version new-version

Before removed package is upgraded.

new-preinst upgrade old-version new-version

Before the package is upgraded.

old-preinst abort-upgrade new-version

If postrm fails during upgrade or fails on failed upgrade.

SEE ALSO

dpkg(1).