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name	type	size	perms	modified	actions
[parent directory]
early-kdump.sh	file	2,050 B	0755	2026-02-02 00:00:00	edit
module-setup.sh	file	2,061 B	0755	2026-02-02 00:00:00	edit

editing: early-kdump.sh

#!/usr/bin/bash

KEXEC=/sbin/kexec
standard_kexec_args="-p"

EARLY_KDUMP_INITRD=""
EARLY_KDUMP_KERNEL=""
EARLY_KDUMP_CMDLINE=""
EARLY_KEXEC_ARGS=""

# shellcheck source=/dev/null
. /etc/sysconfig/kdump
# shellcheck source=/dev/null
. /lib/dracut-lib.sh
# shellcheck source=SCRIPTDIR/../../kdump-lib.sh
. /lib/kdump-lib.sh
# shellcheck source=SCRIPTDIR/../../kdump-logger.sh
. /lib/kdump-logger.sh

# initiate the kdump logger
if ! dlog_init; then
    echo "failed to initiate the kdump logger."
    exit 1
fi

prepare_parameters() {
    EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")
    EARLY_KDUMP_KERNEL="/boot/kernel-earlykdump"
    EARLY_KDUMP_INITRD="/boot/initramfs-earlykdump"
}

early_kdump_load() {
    if ! check_kdump_feasibility; then
        return 1
    fi

if is_fadump_capable; then
        dwarn "WARNING: early kdump doesn't support fadump."
        return 1
    fi

if is_kernel_loaded "kdump"; then
        return 1
    fi

prepare_parameters

# shellcheck disable=SC2153
    EARLY_KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}")

# Here, only output the messages, but do not save these messages
    # to a file because the target disk may not be mounted yet, the
    # earlykdump is too early.
    ddebug "earlykdump: $KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
	--command-line=$EARLY_KDUMP_CMDLINE --initrd=$EARLY_KDUMP_INITRD \
	$EARLY_KDUMP_KERNEL"

# shellcheck disable=SC2086
    if $KEXEC $EARLY_KEXEC_ARGS $standard_kexec_args \
        --command-line="$EARLY_KDUMP_CMDLINE" \
        --initrd=$EARLY_KDUMP_INITRD $EARLY_KDUMP_KERNEL; then
        dinfo "kexec: loaded early-kdump kernel"
        return 0
    else
        derror "kexec: failed to load early-kdump kernel"
        return 1
    fi
}

set_early_kdump() {
    if getargbool 0 rd.earlykdump; then
        dinfo "early-kdump is enabled."
        early_kdump_load
    else
        dinfo "early-kdump is disabled."
    fi

return 0
}

set_early_kdump

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