postinst is in cryptsetup 2:1.6.6-5ubuntu2.
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.
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set -e
# needed for debconf magic in prerm script
. /usr/share/debconf/confmodule
# summary of how this script can be called:
# * <postinst> `configure' <most-recently-configured-version>
# * <old-postinst> `abort-upgrade' <new version>
# * <conflictor's-postinst> `abort-remove' `in-favour' <package>
# <new-version>
# * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
# <failed-install-package> <version> `removing'
# <conflicting-package> <version>
case "$1" in
configure)
if [ -x /usr/sbin/update-initramfs ]; then
update-initramfs -u
fi
# Do a number of checks on the currently installed crypttab
egrep -v "^[[:space:]]*(#|$)" /etc/crypttab | while read dst src key opts; do
if [ -z "$dst" ]; then
continue
elif [ -z "$src" ] || [ -z "$key" ] || [ -z "$opts" ]; then
# All fields must be present
echo "WARNING: $dst in /etc/crypttab is missing some arguments, see man cryptab(5)." >&2
continue
else
# Strip comments - https://bugs.launchpad.net/bugs/185380
opts=$(echo -n $opts | sed 's/ *#.*//')
plainopts="0"
IFS=','
for opt in $opts; do
PARAM=$(echo "$opt" | sed 's/=.*//')
case "$PARAM" in
# Some options are deprecated
gpg)
echo "WARNING: $dst in /etc/crypttab uses the deprecated gpg option, see man crypttab(5)." >&2
;;
ssl)
echo "WARNING: $dst in /etc/crypttab uses the deprecated ssl option, see man crypttab(5)." >&2
;;
luks)
plainopts="3"
;;
cipher|hash|size)
plainopts="$(($plainopts+1))"
;;
esac
done
if [ "$plainopts" -lt "3" ]; then
echo "WARNING: you need to set all of cipher, hash and size for the plain dm-crypt mapping $dst in /etc/crypttab." >&2
fi
unset IFS
fi
done
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installinit
if [ -x "/etc/init.d/cryptdisks-early" ]; then
update-rc.d cryptdisks-early start 26 S . start 59 0 6 . >/dev/null
fi
# End automatically added section
# Automatically added by dh_installinit
if [ -x "/etc/init.d/cryptdisks-udev" ]; then
update-rc.d cryptdisks-udev defaults >/dev/null
fi
# End automatically added section
# Automatically added by dh_installinit
if [ -x "/etc/init.d/cryptdisks" ]; then
update-rc.d cryptdisks start 28 S . start 48 0 6 . >/dev/null
fi
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper mv_conffile /etc/init/cryptdisks-early.conf /etc/init/cryptdisks-udev.conf 2:1.4.3-4 -- "$@"
# End automatically added section
# Automatically added by dh_installdeb
dpkg-maintscript-helper mv_conffile /etc/init/cryptdisks-enable.conf /etc/init/cryptdisks.conf 2:1.6.1-1ubuntu1~ -- "$@"
# End automatically added section
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