postinst is in grub 0.97-29ubuntu68.
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 | #!/bin/sh
if [ "$1" = "configure" ]; then
if dpkg --compare-versions "$2" lt-nl "0.97-29ubuntu6"; then
update-grub
fi
if dpkg --compare-versions "$2" lt "0.97-29ubuntu26"; then
# This is an old misnamed config file we need to get rid of
rm -f /etc/event.d/event.d-last-good-boot
fi
if dpkg --compare-versions "$2" lt "0.97-29ubuntu38"; then
# Remnants of when this was default
rm -rf /boot/last-good-boot /lib/modules/last-good-boot
fi
if egrep -q '^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub' /etc/kernel-img.conf 2>/dev/null; then
echo 'Removing update-grub hooks from /etc/kernel-img.conf in favour of' >&2
echo '/etc/kernel/ hooks.' >&2
sed -ri /etc/kernel-img.conf -e '\%^[[:space:]]*post(inst|rm)_hook[[:space:]]*=[[:space:]]*(/sbin/|/usr/sbin/)?update-grub%d'
update-grub
fi
fi
if [ "x$1" = xtriggered ] ; then
/usr/sbin/update-grub
fi
if [ "$1" = "configure" ]; then
# Create a last-good-boot if one doesn't exist.
/usr/sbin/kernel-helper -i
fi
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