1 # dpkg manual page - deb-prerm(5)
3 # Copyright © 2016 Guillem Jover <guillem@debian.org>
5 # This is free software; you can redistribute it and/or modify
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13 # GNU General Public License for more details.
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22 deb-prerm - package pre-removal maintainer script
30 A package can perform several pre-removal actions via maintainer
31 scripts, by including an executable I<prerm> file in its control
32 archive (i.e. I<DEBIAN/prerm> during package creation).
34 The script can be called in the following ways:
38 =item I<prerm> B<remove>
40 Before the package is removed.
42 =item I<old-prerm> B<upgrade> I<new-version>
46 =item I<new-prerm> B<failed-upgrade> I<old-version> I<new-version>
48 If the above B<upgrade> fails.
50 The I<new-version> is passed only since dpkg 1.18.5.
52 =item I<prerm> B<deconfigure> B<in-favour> I<new-package> I<new-version>
54 =item S< >[ B<removing> I<old-package> I<old-version> ]
56 Before package is deconfigured while dependency is replaced due to conflict.
58 =item I<prerm> B<remove> B<in-favour> I<new-package> I<new-version>
60 Before the package is replaced due to conflict.