1 .\" dpkg manual page - deb-preinst(5)
3 .\" Copyright © 2016 Guillem Jover <guillem@debian.org>
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18 .TH deb\-preinst 5 "%RELEASE_DATE%" "%VERSION%" "dpkg suite"
21 deb\-preinst \- package pre-installation maintainer script
27 A package can perform several pre-installation actions via maintainer
28 scripts, by including an executable \fIpreinst\fP file in its control
29 archive (i.e. \fIDEBIAN/preinst\fP during package creation).
31 The script can be called in the following ways:
33 \fInew-preinst\fP \fBinstall\fP
34 Before the package is installed.
36 \fInew-preinst\fP \fBinstall\fP \fIold-version new-version\fP
37 Before removed package is upgraded.
39 \fInew-preinst\fP \fBupgrade\fP \fIold-version new-version\fP
40 Before the package is upgraded.
42 \fIold-preinst\fP \fBabort-upgrade\fP \fInew-version\fP
43 If \fIpostrm\fP fails during upgrade or fails on failed upgrade.