diff options
Diffstat (limited to 'debian/kexec-tools.postinst')
| -rw-r--r-- | debian/kexec-tools.postinst | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/debian/kexec-tools.postinst b/debian/kexec-tools.postinst new file mode 100644 index 0000000..2f282a6 --- /dev/null +++ b/debian/kexec-tools.postinst @@ -0,0 +1,135 @@ +#! /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 |