preinst is in bluez 5.48-0ubuntu3.
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 | #!/bin/sh
set -e
case "$1" in
install|upgrade)
if dpkg-maintscript-helper supports rm_conffile; then
for conffile in \
"/etc/bluetooth/network.service" \
"/etc/bluetooth/serial.service" \
"/etc/bluetooth/input.service"; do
dpkg-maintscript-helper \
rm_conffile "${conffile}" 3.30-1 bluez-utils -- "$@"
done
dpkg-maintscript-helper rm_conffile \
/etc/dbus-1/system.d/bluez-hcid.conf 3.7-1 bluez-utils -- "$@"
for conffile in \
/etc/bluetooth/rfcomm.conf \
/etc/bluetooth/serial.conf \
/etc/bluetooth/audio.conf; do \
dpkg-maintscript-helper \
rm_conffile ${conffile} 5.21-2 bluez -- "$@"
done
fi
if dpkg-maintscript-helper supports mv_conffile; then
dpkg-maintscript-helper mv_conffile \
/etc/dbus-1/system.d/bluez-hcid.conf \
/etc/dbus-1/system.d/bluetooth.conf 3.7-1 bluez -- "$@"
dpkg-maintscript-helper mv_conffile \
/etc/modprobe.d/bluez /etc/modprobe.d/bluez.conf 4.42-1 bluez -- "$@"
fi
esac
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