View file File name : mkfadumprd Content :#!/bin/bash --norc # Generate an initramfs image that isolates dump capture capability within # the default initramfs using zz-fadumpinit dracut module. if [ -f /etc/sysconfig/kdump ]; then . /etc/sysconfig/kdump fi [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut . $dracutbasedir/dracut-functions.sh . /lib/kdump/kdump-lib.sh . /lib/kdump/kdump-logger.sh #initiate the kdump logger if ! dlog_init; then echo "mkfadumprd: failed to initiate the kdump logger." exit 1 fi readonly MKFADUMPRD_TMPDIR="$(mktemp -d -t mkfadumprd.XXXXXX)" [ -d "$MKFADUMPRD_TMPDIR" ] || perror_exit "mkfadumprd: mktemp -d -t mkfadumprd.XXXXXX failed." trap ' ret=$?; [[ -d $MKFADUMPRD_TMPDIR ]] && rm --one-file-system -rf -- "$MKFADUMPRD_TMPDIR"; exit $ret; ' EXIT # clean up after ourselves no matter how we die. trap 'exit 1;' SIGINT MKDUMPRD="/sbin/mkdumprd -f" # Default boot initramfs to be rebuilt REBUILD_INITRD="$1" && shift TARGET_INITRD="$1" && shift FADUMP_INITRD="$MKFADUMPRD_TMPDIR/fadump.img" ### First build an initramfs with dump capture capability # this file tells the initrd is fadump enabled touch "$MKFADUMPRD_TMPDIR/fadump.initramfs" ddebug "rebuild fadump initrd: $FADUMP_INITRD $DEFAULT_INITRD $KDUMP_KERNELVER" if ! $MKDUMPRD "$FADUMP_INITRD" -i "$MKFADUMPRD_TMPDIR/fadump.initramfs" /etc/fadump.initramfs; then perror_exit "mkfadumprd: failed to build image with dump capture support" fi ### Unpack the initramfs having dump capture capability mkdir -p "$MKFADUMPRD_TMPDIR/fadumproot" if ! (pushd "$MKFADUMPRD_TMPDIR/fadumproot" > /dev/null && lsinitrd --unpack "$FADUMP_INITRD" && \ popd > /dev/null); then derror "mkfadumprd: failed to unpack '$MKFADUMPRD_TMPDIR'" exit 1 fi ### Pack it into the normal boot initramfs with zz-fadumpinit module _dracut_isolate_args="--rebuild $REBUILD_INITRD --add zz-fadumpinit \ -i $MKFADUMPRD_TMPDIR/fadumproot /fadumproot \ -i $MKFADUMPRD_TMPDIR/fadumproot/usr/lib/dracut/loaded-kernel-modules.txt /usr/lib/dracut/fadump-kernel-modules.txt" if is_squash_available; then _dracut_isolate_args="$_dracut_isolate_args --add squash" fi if ! dracut --force --quiet $_dracut_isolate_args $@ "$TARGET_INITRD"; then perror_exit "mkfadumprd: failed to setup '$TARGET_INITRD' with dump capture capability" fi