summaryrefslogtreecommitdiffstats
path: root/man/deb-preinst.pod
blob: 340909a51142d01aad7a03a1193ef34fd293ab86 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
# 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
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

=encoding utf8

=head1 NAME

deb-preinst - package pre-installation maintainer script

=head1 SYNOPSIS

B<DEBIAN/preinst>

=head1 DESCRIPTION

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

The script can be called in the following ways:

=over

=item I<new-preinst> B<install>

Before the package is installed.

=item I<new-preinst> B<install> I<old-version> I<new-version>

Before a removed package is upgraded.

The I<new-version> is passed only since dpkg 1.18.5.

=item I<new-preinst> B<upgrade> I<old-version> I<new-version>

Before the package is upgraded.

The I<new-version> is passed only since dpkg 1.18.5.

=item I<old-preinst> B<abort-upgrade> I<new-version>

If I<postrm> fails during upgrade or fails on failed upgrade.

=back

=head1 SEE ALSO

L<dpkg(1)>.