deb-preinst
deb-preinst(5) dpkg suite deb-preinst(5)
NAME
deb-preinst - package pre-installation maintainer scriptSYNOPSIS
DEBIAN/preinstDESCRIPTION
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 a removed package is upgraded.
The new-version is passed only since dpkg 1.18.5.
new-preinst upgrade old-version new-version
Before the package is upgraded.
The new-version is passed only since dpkg 1.18.5.
old-preinst abort-upgrade new-version
If postrm fails during upgrade or fails on failed upgrade.SEE ALSO
dpkg(1).1.22.21 2025-06-30 deb-preinst(5)