preinst is in system-tools-backends 2.10.2-1ubuntu1.
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 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | #!/bin/sh
set -e
# stop backend here when upgrading from a version that didn't handle
# it correctly yet in the prerm
# Remove a no-longer used conffile
rm_conffile() {
PKGNAME="$1"
CONFFILE="$2"
if [ -e "$CONFFILE" ]; then
md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE'{s/ obsolete$//;s/.* //p}\"`"
if [ "$md5sum" != "$old_md5sum" ]; then
echo "Obsolete conffile $CONFFILE has been modified by you."
echo "Saving as $CONFFILE.dpkg-bak ..."
mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
else
echo "Removing obsolete conffile $CONFFILE ..."
rm -f "$CONFFILE"
fi
fi
}
case "$1" in
install|upgrade)
if dpkg --compare-versions "$2" lt-nl 2.2.1-5; then
test -x /etc/dbus-1/event.d/70system-tools-backends && \
/etc/dbus-1/event.d/70system-tools-backends stop || true
rm_conffile system-tools-backends "/etc/dbus-1/event.d/70system-tools-backends"
fi
if dpkg --compare-versions "$2" lt-nl 2.6.0-3; then
rm_conffile system-tools-backends "/etc/init.d/system-tools-backends"
update-rc.d system-tools-backends remove
fi
if [ -f /etc/dbus-1/system.d/system-tools-backends.conf ] && \
[ -f /etc/dbus-1/system.d/org.freedesktop.SystemToolsBackends.conf ]; then
# We have both old and new conffiles, which probably means that a version
# between 2.6.0-6.1 and 2.10.1-2 was installed.
if echo "68224c4af00f723e7e08992a91ddc9f286fc4f4c /etc/dbus-1/system.d/system-tools-backends.conf" |
sha1sum --check --status -; then
# Old conffile was not modified, let's just remove it
rm -f /etc/dbus-1/system.d/system-tools-backends.conf
else
# Otherwise, rename it
mv /etc/dbus-1/system.d/system-tools-backends.conf \
/etc/dbus-1/system.d/system-tools-backends.conf.dpkg-remove
fi
fi
;;
esac
# Automatically added by dh_installdeb
dpkg-maintscript-helper mv_conffile /etc/dbus-1/system.d/system-tools-backends.conf /etc/dbus-1/system.d/org.freedesktop.SystemToolsBackends.conf 2.6.0-6.1 -- "$@"
# End automatically added section
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