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initscripts: add kdump scripts

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this is initial kdump and kdump scripts, it looks when run kdump-config
load the first time, the kdump kernel can be loaded, and test crash dump
with echo c > /proc/sysrq-trigger result in system hang forever, then
had to power reset. after power reset, kdump-config load could no longer
load the kdump kernel, errors out with:

[root@bpfire-3 crash]# kdump-config load
cp: cannot stat '/etc/kdump/sysctl.conf': No such file or directory
Creating symlink /var/lib/kdump/vmlinuz.
ln: failed to create symbolic link '/var/lib/kdump/vmlinuz': No such file or directory
Unable to locate kernel hook ... failed!
Can't find kernel text map area from kcore
Cannot load /boot/vmlinuz-6.15.6-ipfire
failed to load kdump kernel ... failed!

so kdump is not working properly, but add the kdump scripts anyway, the
issue can be investigated later in future.

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
This commit is contained in:
Vincent Li
2025-08-22 21:38:29 +00:00
parent 8d0051d8f6
commit ca64eb8761
5 changed files with 1989 additions and 0 deletions
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1396
src/initscripts/system/kdump-config Executable file
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433
src/initscripts/system/kdump-init-functions Normal file
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# /lib/lsb/init-functions for Debian -*- shell-script -*-
#
#Copyright (c) 2002-08 Chris Lawrence
#All rights reserved.
#
#Redistribution and use in source and binary forms, with or without
#modification, are permitted provided that the following conditions
#are met:
#1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#3. Neither the name of the author nor the names of other contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
#THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
#IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
#WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
#LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
#BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
#OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
#EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
start_daemon () {
local force nice pidfile exec args OPTIND
force=""
nice=0
pidfile=/dev/null
OPTIND=1
while getopts fn:p: opt ; do
case "$opt" in
f) force="force";;
n) nice="$OPTARG";;
p) pidfile="$OPTARG";;
esac
done
shift $(($OPTIND - 1))
if [ "$1" = '--' ]; then
shift
fi
exec="$1"; shift
args="--start --nicelevel $nice --quiet --oknodo"
if [ "$force" ]; then
/sbin/start-stop-daemon $args \
--chdir "$PWD" --startas $exec --pidfile /dev/null -- "$@"
elif [ $pidfile ]; then
/sbin/start-stop-daemon $args \
--chdir "$PWD" --exec $exec --oknodo --pidfile "$pidfile" -- "$@"
else
/sbin/start-stop-daemon $args --chdir "$PWD" --exec $exec -- "$@"
fi
}
pidofproc () {
local pidfile base status specified pid OPTIND
pidfile=
specified=
OPTIND=1
while getopts p: opt ; do
case "$opt" in
p) pidfile="$OPTARG"
specified="specified"
;;
esac
done
shift $(($OPTIND - 1))
if [ $# -ne 1 ]; then
echo "$0: invalid arguments" >&2
return 4
fi
base=${1##*/}
if [ ! "$specified" ]; then
pidfile="/var/run/$base.pid"
fi
if [ -n "${pidfile:-}" ]; then
if [ -e "$pidfile" ]; then
if [ -r "$pidfile" ]; then
read pid < "$pidfile"
if [ -n "${pid:-}" ]; then
if $(kill -0 "${pid:-}" 2> /dev/null); then
echo "$pid" || true
return 0
elif ps "${pid:-}" >/dev/null 2>&1; then
echo "$pid" || true
return 0 # program is running, but not owned by this user
else
return 1 # program is dead and /var/run pid file exists
fi
fi
else
return 4 # pid file not readable, hence status is unknown.
fi
else
# pid file doesn't exist, try to find the pid nevertheless
if [ -x /bin/pidof ] && [ ! "$specified" ]; then
status="0"
/bin/pidof -c -o %PPID -x $1 || status="$?"
if [ "$status" = 1 ]; then
return 3 # program is not running
fi
return 0
fi
return 3 # specified pid file doesn't exist, program probably stopped
fi
fi
if [ "$specified" ]; then
return 3 # almost certain it's not running
fi
return 4 # Unable to determine status
}
# start-stop-daemon uses the same algorithm as "pidofproc" above.
killproc () {
local pidfile sig status base name_param is_term_sig OPTIND
pidfile=
name_param=
is_term_sig=
OPTIND=1
while getopts p: opt ; do
case "$opt" in
p) pidfile="$OPTARG";;
esac
done
shift $(($OPTIND - 1))
base=${1##*/}
if [ ! $pidfile ]; then
name_param="--name $base --pidfile /var/run/$base.pid"
else
name_param="--name $base --pidfile $pidfile"
fi
sig=$(echo ${2:-} | sed -e 's/^-\(.*\)/\1/')
sig=$(echo $sig | sed -e 's/^SIG\(.*\)/\1/')
if [ "$sig" = 15 ] || [ "$sig" = TERM ]; then
is_term_sig="terminate_signal"
fi
status=0
if [ ! "$is_term_sig" ]; then
if [ -n "$sig" ]; then
/sbin/start-stop-daemon --stop --signal "$sig" \
--quiet $name_param || status="$?"
else
/sbin/start-stop-daemon --stop \
--retry 5 \
--quiet $name_param || status="$?"
fi
else
/sbin/start-stop-daemon --stop --quiet \
--oknodo $name_param || status="$?"
fi
if [ "$status" = 1 ]; then
if [ -z "$sig" ]; then
return 0
fi
return 3 # program is not running
fi
if [ "$status" = 0 ] && [ "$is_term_sig" ] && [ "$pidfile" ]; then
pidofproc -p "$pidfile" "$1" >/dev/null || rm -f "$pidfile"
fi
return 0
}
# Return LSB status
status_of_proc () {
local pidfile daemon name status OPTIND
pidfile=
OPTIND=1
while getopts p: opt ; do
case "$opt" in
p) pidfile="$OPTARG";;
esac
done
shift $(($OPTIND - 1))
if [ -n "$pidfile" ]; then
pidfile="-p $pidfile"
fi
daemon="$1"
name="$2"
status="0"
pidofproc $pidfile $daemon >/dev/null || status="$?"
if [ "$status" = 0 ]; then
log_success_msg "$name is running"
return 0
elif [ "$status" = 4 ]; then
log_failure_msg "could not access PID file for $name"
return $status
else
log_failure_msg "$name is not running"
return $status
fi
}
log_use_fancy_output () {
TPUT=/usr/bin/tput
EXPR=/usr/bin/expr
if [ -t 1 ] &&
[ "x${TERM:-}" != "x" ] &&
[ "x${TERM:-}" != "xdumb" ] &&
[ -x $TPUT ] && [ -x $EXPR ] &&
$TPUT hpa 60 >/dev/null 2>&1 &&
$TPUT setaf 1 >/dev/null 2>&1
then
[ -z $FANCYTTY ] && FANCYTTY=1 || true
else
FANCYTTY=0
fi
case "$FANCYTTY" in
1|Y|yes|true) true;;
*) false;;
esac
}
log_success_msg () {
if [ -n "${1:-}" ]; then
log_begin_msg $@
fi
log_end_msg 0
}
log_failure_msg () {
if [ -n "${1:-}" ]; then
log_begin_msg $@ "..."
fi
log_end_msg 1 || true
}
log_warning_msg () {
if [ -n "${1:-}" ]; then
log_begin_msg $@ "..."
fi
log_end_msg 255 || true
}
#
# NON-LSB HELPER FUNCTIONS
#
# int get_lsb_header_val (char *scriptpathname, char *key)
get_lsb_header_val () {
if [ ! -f "$1" ] || [ -z "${2:-}" ]; then
return 1
fi
LSB_S="### BEGIN INIT INFO"
LSB_E="### END INIT INFO"
sed -n "/$LSB_S/,/$LSB_E/ s/# $2: \+\(.*\)/\1/p" "$1"
}
# If the currently running init daemon is upstart, return zero; if the
# calling init script belongs to a package which also provides a native
# upstart job, it should generally exit non-zero in this case.
init_is_upstart()
{
if [ -x /sbin/initctl ] && /sbin/initctl version 2>/dev/null | /bin/grep -q upstart; then
return 0
fi
return 1
}
# int log_begin_message (char *message)
log_begin_msg () {
log_begin_msg_pre "$@"
if [ -z "${1:-}" ]; then
return 1
fi
echo -n "$@" || true
log_begin_msg_post "$@"
}
# Sample usage:
# log_daemon_msg "Starting GNOME Login Manager" "gdm"
#
# On Debian, would output "Starting GNOME Login Manager: gdm"
# On Ubuntu, would output " * Starting GNOME Login Manager..."
#
# If the second argument is omitted, logging suitable for use with
# log_progress_msg() is used:
#
# log_daemon_msg "Starting remote filesystem services"
#
# On Debian, would output "Starting remote filesystem services:"
# On Ubuntu, would output " * Starting remote filesystem services..."
log_daemon_msg () {
if [ -z "${1:-}" ]; then
return 1
fi
log_daemon_msg_pre "$@"
if [ -z "${2:-}" ]; then
echo -n "$1:" || true
return
fi
echo -n "$1: $2" || true
log_daemon_msg_post "$@"
}
# #319739
#
# Per policy docs:
#
# log_daemon_msg "Starting remote file system services"
# log_progress_msg "nfsd"; start-stop-daemon --start --quiet nfsd
# log_progress_msg "mountd"; start-stop-daemon --start --quiet mountd
# log_progress_msg "ugidd"; start-stop-daemon --start --quiet ugidd
# log_end_msg 0
#
# You could also do something fancy with log_end_msg here based on the
# return values of start-stop-daemon; this is left as an exercise for
# the reader...
#
# On Ubuntu, one would expect log_progress_msg to be a no-op.
log_progress_msg () {
if [ -z "${1:-}" ]; then
return 1
fi
echo -n " $@" || true
}
# int log_end_message (int exitstatus)
log_end_msg () {
# If no arguments were passed, return
if [ -z "${1:-}" ]; then
return 1
fi
local retval
retval=$1
log_end_msg_pre "$@"
# Only do the fancy stuff if we have an appropriate terminal
# and if /usr is already mounted
if log_use_fancy_output; then
RED=$( $TPUT setaf 1)
YELLOW=$( $TPUT setaf 3)
NORMAL=$( $TPUT op)
else
RED=''
YELLOW=''
NORMAL=''
fi
if [ $1 -eq 0 ]; then
echo "." || true
elif [ $1 -eq 255 ]; then
/bin/echo -e " ${YELLOW}(warning).${NORMAL}" || true
else
/bin/echo -e " ${RED}failed!${NORMAL}" || true
fi
log_end_msg_post "$@"
return $retval
}
log_action_msg () {
log_action_msg_pre "$@"
echo "$@." || true
log_action_msg_post "$@"
}
log_action_begin_msg () {
log_action_begin_msg_pre "$@"
echo -n "$@..." || true
log_action_begin_msg_post "$@"
}
log_action_cont_msg () {
echo -n "$@..." || true
}
log_action_end_msg () {
local end
log_action_end_msg_pre "$@"
if [ -z "${2:-}" ]; then
end="."
else
end=" ($2)."
fi
if [ $1 -eq 0 ]; then
echo "done${end}" || true
else
if log_use_fancy_output; then
RED=$( $TPUT setaf 1)
NORMAL=$( $TPUT op)
/bin/echo -e "${RED}failed${end}${NORMAL}" || true
else
echo "failed${end}" || true
fi
fi
log_action_end_msg_post "$@"
}
# Pre&Post empty function declaration, to be overriden from /lib/lsb/init-functions.d/*
log_daemon_msg_pre () { :; }
log_daemon_msg_post () { :; }
log_begin_msg_pre () { :; }
log_begin_msg_post () { :; }
log_end_msg_pre () { :; }
log_end_msg_post () { :; }
log_action_msg_pre () { :; }
log_action_msg_post () { :; }
log_action_begin_msg_pre () { :; }
log_action_begin_msg_post () { :; }
log_action_end_msg_pre () { :; }
log_action_end_msg_post () { :; }
# Include hooks from other packages in /lib/lsb/init-functions.d
for hook in $(run-parts --lsbsysinit --list /lib/lsb/init-functions.d 2>/dev/null); do
[ -r $hook ] && . $hook || true
done
FANCYTTY=
[ -e /etc/lsb-base-logging.sh ] && . /etc/lsb-base-logging.sh || true

103
src/initscripts/system/kdump-tools Normal file
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# kdump-tools configuration
# ---------------------------------------------------------------------------
# USE_KDUMP - controls kdump will be configured
# 0 - kdump kernel will not be loaded
# 1 - kdump kernel will be loaded and kdump is configured
#
USE_KDUMP=1
# ---------------------------------------------------------------------------
# Kdump Kernel:
# KDUMP_KERNEL - A full pathname to a kdump kernel.
# KDUMP_INITRD - A full pathname to the kdump initrd (if used).
# If these are not set, kdump-config will try to use the current kernel
# and initrd if it is relocatable. Otherwise, you will need to specify
# these manually.
#KDUMP_KERNEL=/var/lib/kdump/vmlinuz
#KDUMP_INITRD=/var/lib/kdump/initrd.img
# ---------------------------------------------------------------------------
# vmcore Handling:
# KDUMP_COREDIR - local path to save the vmcore to.
# KDUMP_FAIL_CMD - This variable can be used to cause a reboot or
# start a shell if saving the vmcore fails. If not set, "reboot -f"
# is the default.
# Example - start a shell if the vmcore copy fails:
# KDUMP_FAIL_CMD="echo 'makedumpfile FAILED.'; /bin/bash; reboot -f"
# KDUMP_DUMP_DMESG - This variable controls if the dmesg buffer is dumped.
# If unset or set to 1, the dmesg buffer is dumped. If set to 0, the dmesg
# buffer is not dumped.
# KDUMP_NUM_DUMPS - This variable controls how many dump files are kept on
# the machine to prevent running out of disk space. If set to 0 or unset,
# the variable is ignored and no dump files are automatically purged.
# KDUMP_COMPRESSION - Compress the dumpfile. No compression is used by default.
# Supported compressions: bzip2, gzip, lz4, xz
KDUMP_COREDIR="/var/crash"
#KDUMP_FAIL_CMD="reboot -f"
#KDUMP_DUMP_DMESG=
#KDUMP_NUM_DUMPS=
#KDUMP_COMPRESSION=
# ---------------------------------------------------------------------------
# Makedumpfile options:
# MAKEDUMP_ARGS - extra arguments passed to makedumpfile (8). The default,
# if unset, is to pass '-c -d 31' telling makedumpfile to use compression
# and reduce the corefile to in-use kernel pages only.
#MAKEDUMP_ARGS="-c -d 31"
# ---------------------------------------------------------------------------
# Kexec/Kdump args
# KDUMP_KEXEC_ARGS - Additional arguments to the kexec command used to load
# the kdump kernel
# Example - Use this option on x86 systems with PAE and more than
# 4 gig of memory:
# KDUMP_KEXEC_ARGS="--elf64-core-headers"
# KDUMP_CMDLINE - The default is to use the contents of /proc/cmdline.
# Set this variable to override /proc/cmdline.
# KDUMP_CMDLINE_APPEND - Additional arguments to append to the command line
# for the kdump kernel. If unset, it defaults to
# "reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb"
#KDUMP_KEXEC_ARGS=""
#KDUMP_CMDLINE=""
#KDUMP_CMDLINE_APPEND="reset_devices systemd.unit=kdump-tools-dump.service nr_cpus=1 irqpoll nousb"
# ---------------------------------------------------------------------------
# Architecture specific Overrides:
# ---------------------------------------------------------------------------
# Remote dump facilities:
# HOSTTAG - Select if hostname of IP address will be used as a prefix to the
# timestamped directory when sending files to the remote server.
# 'ip' is the default.
#HOSTTAG="hostname|[ip]"
# NFS - Hostname and mount point of the NFS server configured to receive
# the crash dump. The syntax must be {HOSTNAME}:{MOUNTPOINT}
# (e.g. remote:/var/crash)
# NFS_TIMEO - Timeout before NFS retries a request. See man nfs(5) for details.
# NFS_RETRANS - Number of times NFS client retries a request. See man nfs(5) for details.
#NFS="<nfs mount>"
#NFS_TIMEO="600"
#NFS_RETRANS="3"
# FTP - Hostname and path of the FTP server configured to receive the crash dump.
# The syntax is {HOSTNAME}[:{PATH}] with PATH defaulting to /.
# FTP_USER - FTP username. A anonomous upload will be used if not set.
# FTP_PASSWORD - password for the FTP user
# FTP_PORT=21 - FTP port. Port 21 will be used by default.
#FTP="<server>:<path>"
#FTP_USER=""
#FTP_PASSWORD=""
#FTP_PORT=21
# SSH - username and hostname of the remote server that will receive the dump
# and dmesg files.
# SSH_KEY - Full path of the ssh private key to be used to login to the remote
# server. use kdump-config propagate to send the public key to the
# remote server
#SSH="<user at server>"
#SSH_KEY="<path>"

53
src/initscripts/system/kdump-vars.sh Normal file
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#
# Set rcS vars
#
# Because /etc/default/rcS isn't a conffile, it's never updated
# automatically. So that an empty or outdated file missing newer
# options works correctly, set the default values here.
TMPTIME=0
SULOGIN=no
DELAYLOGIN=no
UTC=yes
VERBOSE=no
FSCKFIX=no
# Source conffile
if [ -f /etc/default/rcS ]; then
. /etc/default/rcS
fi
# Unset old unused options
unset EDITMOTD
unset RAMRUN
unset RAMLOCK
# Don't unset RAMSHM and RAMTMP for now.
# Parse kernel command line
if [ -r /proc/cmdline ]; then
for ARG in $(cat /proc/cmdline); do
case $ARG in
# check for bootoption 'noswap' and do not activate swap
# partitions/files when it is set.
noswap)
NOSWAP=yes
;;
# Accept the same 'quiet' option as the kernel, but only
# during boot and shutdown. Only use this rule when the
# variables set by init.d/rc is present.
quiet)
if [ "$RUNLEVEL" ] && [ "$PREVLEVEL" ] ; then
VERBOSE="no"
fi
;;
esac
done
fi
# But allow both rcS and the kernel options 'quiet' to be overrided
# when INIT_VERBOSE=yes is used as well.
if [ "$INIT_VERBOSE" ] ; then
VERBOSE="$INIT_VERBOSE"
fi