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|
#! /bin/sh
# postinst script for kexec-tools
#
# see: dh_installdeb(1)
set -e
update_param() {
eval old=\"'$'$1\"
eval new=\"'$'new_$1\"
if test "$old" = "$new"; then
return
fi
if test -z "$old"; then
grep -Eq "^ *$1=" "$INITCONFFILE" || echo "$1=" \
>> "$INITCONFFILE"
fi
sed -e "s/^ *$1=.*/$1=$new/" < $INITCONFFILE > $INITCONFFILE.$$
mv -f $INITCONFFILE.$$ $INITCONFFILE
}
# 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>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# Handle debconf
. /usr/share/debconf/confmodule
INITCONFFILE=/etc/default/kexec
# We generate several files during the postinst, and we don't want
# them to be readable only by root.
umask 022
case "$1" in
configure)
;;
install|upgrade)
;;
upgrade)
;;
abort-upgrade|abort-remove|abort-deconfigure)
exit 0
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
# Generate configuration file if it does not exist, using
# default values.
[ -r "${INITCONFFILE}" ] || {
echo Generating ${INITCONFFILE}... >&2
cat >${INITCONFFILE} <<'EOFMAGICNUMBER1234'
# Defaults for kexec-tools
# Kernel and initrd image
KERNEL_IMAGE="/vmlinuz"
INITRD="/initrd.img"
# If empty, use current /proc/cmdline
APPEND=""
# Load the default kernel from grub config (true/false)
USE_GRUB_CONFIG=false
EOFMAGICNUMBER1234
}
# Add USE_GRUB_CONFIG parameter to config file if it does not exist
. ${INITCONFFILE}
if test -z "$USE_GRUB_CONFIG" ; then
echo "" >> ${INITCONFFILE}
echo "# Load the default kernel from grub config (true/false)" >> ${INITCONFFILE}
echo "USE_GRUB_CONFIG=" >> ${INITCONFFILE}
fi
# Remove discontinued LOAD_KEXEC option
if test -n "$LOAD_KEXEC" ; then
sed -i "s/Defaults for kexec initscript/Defaults for kexec-tools/" ${INITCONFFILE}
sed -i "/sourced by/d" ${INITCONFFILE}
sed -i "/Load a kexec kernel/d" ${INITCONFFILE}
sed -i "/LOAD_KEXEC/d" ${INITCONFFILE}
sed -i '/^$/N;/^\n$/D' ${INITCONFFILE}
fi
# Detect if system is configured to place kernel link under /boot instead of /
# If yes, update kernel and initrd image locations in config file
if [ -f /etc/kernel-img.conf ]; then
LINK_IN_BOOT=`grep link_in_boot /etc/kernel-img.conf | cut -f2 -d= | tr -d '[:blank:]'`
if [ "$LINK_IN_BOOT" = "yes" ]; then
sed -e "s/KERNEL_IMAGE=\"\/vmlinuz\"/KERNEL_IMAGE=\"\/boot\/vmlinuz\"/" < ${INITCONFFILE} > ${INITCONFFILE}.$$
mv -f ${INITCONFFILE}.$$ $INITCONFFILE
sed -e "s/INITRD=\"\/initrd.img\"/INITRD=\"\/boot\/initrd.img\"/" < ${INITCONFFILE} > ${INITCONFFILE}.$$
mv -f ${INITCONFFILE}.$$ $INITCONFFILE
else
sed -e "s/KERNEL_IMAGE=\"\/boot\/vmlinuz\"/KERNEL_IMAGE=\"\/vmlinuz\"/" < ${INITCONFFILE} > ${INITCONFFILE}.$$
mv -f ${INITCONFFILE}.$$ $INITCONFFILE
sed -e "s/INITRD=\"\/boot\/initrd.img\"/INITRD=\"\/initrd.img\"/" < ${INITCONFFILE} > ${INITCONFFILE}.$$
mv -f ${INITCONFFILE}.$$ $INITCONFFILE
fi
fi
# ------------------------- Debconf questions start ---------------------
if [ -d /boot/grub ]
then
db_get kexec-tools/use_grub_config
new_USE_GRUB_CONFIG="${RET}"
else
new_USE_GRUB_CONFIG="false"
db_set kexec-tools/use_grub_config "false"
fi
update_param USE_GRUB_CONFIG
# ------------------------- Debconf questions end ---------------------
#DEBHELPER#
exit 0
|
