preinst is in cryptsetup 2:1.4.1-2ubuntu4.
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 56 57 | #! /bin/sh
set -e
create_crypttab() {
if [ ! -f "/etc/crypttab" ]; then
cat <<-EOC >/etc/crypttab
# <target name> <source device> <key file> <options>
EOC
fi
}
# 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
}
VERSION_UDEV="2:1.0.6-5"
case "$1" in
install)
create_crypttab
if dpkg --compare-versions "$2" le "$VERSION_UDEV"; then
rm_conffile cryptsetup "/etc/udev/rules.d/z60_cryptsetup.rules"
fi
;;
upgrade)
if dpkg --compare-versions "$2" le "$VERSION_UDEV"; then
rm_conffile cryptsetup "/etc/udev/rules.d/z60_cryptsetup.rules"
fi
;;
abort-upgrade)
;;
*)
echo "preinst called with unknown argument '$1'" >&2
exit 1
;;
esac
exit 0
|