postinst is in mythbuntu-lightdm-theme 1.01.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | #! /bin/sh
set -e
case "$1" in
configure|upgrade)
#not a conffile
if [ ! -e /etc/lightdm/lightdm.conf ]; then
cp /usr/share/mythbuntu/lightdm/lightdm.conf /etc/lightdm/lightdm.conf
elif [ -x /usr/lib/lightdm/lightdm-set-defaults ] ; then
/usr/lib/lightdm/lightdm-set-defaults --keep-old --session=mythbuntu || true
/usr/lib/lightdm/lightdm-set-defaults --keep-old --greeter=lightdm-gtk-greeter || true
fi
;;
esac
if [ "$1" = "configure" ] ; then
update-alternatives --install /etc/lightdm/lightdm-gtk-greeter.conf \
lightdm-gtk-greeter-config-derivative \
/etc/lightdm/mythbuntu-lightdm-gtk-greeter.conf 30
fi
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