Adicione o script postrm
:
#!/bin/sh
set -e
case "$1" in
purge|remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
# Recreate the /usr/local/share/ca-certificates directory, since we are
# ignoring Debian Policy by intentionally installing here. Removal of
# ca-certificates-local removes this directory if empty.
if [ ! -e /usr/local/share/ca-certificates ]; then
if mkdir /usr/local/share/ca-certificates 2>/dev/null; then
chown root:staff /usr/local/share/ca-certificates
chmod 2775 /usr/local/share/ca-certificates
fi
fi
;;
*)
echo "postrm called with unknown argument \'$1'" >&2
exit 1
;;
esac
#DEBHELPER#
exit 0
Este código é de ca-certificates-local :
This is an example stub source package that includes a dummy CA certificate in the local/ directory. Remove the dummy certificate, copy your trusted local root CA (in PEM format with the filename ending in ".crt") to the local/ directory, edit files in the debian/ directory as desired, and build your custom package.
Veja LEIA-ME , Etapas para criar sua CA raiz local personalizada pacote deste exemplo
Assim, a maneira rápida de criar e instalar esses pacotes:
git clone git://anonscm.debian.org/collab-maint/ca-certificates.git ~/ca-certificates
cd ~/ca-certificates/examples/ca-certificates-local/
rm local/Local_Root_CA.crt
cp <path-to-your-cert> local/
# edit debian/control: change package-name, description, etc
# install build dependencies: http://unix.stackexchange.com/questions/177505/how-to-install-parse-build-dependencies-from-debian-control/211319#211319
dpkg-buildpackage
dpkg -i ../<package-name-version>.deb