bash scripts: fix redundant exit code check
upstream: fedora
resolves: bz2003832
conflict: none
commit a4648fc851
Author: Kairui Song <kasong@redhat.com>
Date: Wed Sep 8 17:23:16 2021 +0800
bash scripts: fix redundant exit code check
As suggested by:
https://github.com/koalaman/shellcheck/wiki/SC2181
Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Philipp Rudo <prudo@redhat.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
This commit is contained in:
Tao Liu
parent
bf4667b866
commit
f6d6b60a6a
@ -255,8 +255,7 @@ kdump_static_ip() {
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_gateway="[$_gateway]"
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else
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_prefix=$(cut -d'/' -f2 <<< "$_ipaddr")
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_netmask=$(cal_netmask_by_prefix "$_prefix" "$_ipv6_flag")
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if [[ "$?" -ne 0 ]]; then
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if ! _netmask=$(cal_netmask_by_prefix "$_prefix" "$_ipv6_flag"); then
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derror "Failed to calculate netmask for $_ipaddr"
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exit 1
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fi
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@ -359,10 +358,7 @@ kdump_setup_bridge() {
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_dev=${_dev##*/}
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_kdumpdev=$_dev
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if kdump_is_bond "$_dev"; then
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(kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")")
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if [[ $? != 0 ]]; then
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exit 1
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fi
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(kdump_setup_bond "$_dev" "$(get_nmcli_connection_show_cmd_by_ifname "$_dev")") || exit 1
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elif kdump_is_team "$_dev"; then
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kdump_setup_team "$_dev"
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elif kdump_is_vlan "$_dev"; then
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@ -420,9 +416,7 @@ kdump_setup_team() {
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echo " team=$_netdev:${_slaves%,}" >> "${initdir}/etc/cmdline.d/44team.conf"
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#Buggy version teamdctl outputs to stderr!
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#Try to use the latest version of teamd.
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teamdctl "$_netdev" config dump > "${initdir}/tmp/$$-$_netdev.conf"
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if [[ $? -ne 0 ]]
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then
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if ! teamdctl "$_netdev" config dump > "${initdir}/tmp/$$-$_netdev.conf"; then
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derror "teamdctl failed."
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exit 1
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fi
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@ -442,10 +436,7 @@ kdump_setup_vlan() {
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derror "Vlan over bridge is not supported!"
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exit 1
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elif kdump_is_bond "$_phydev"; then
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(kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")")
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if [[ $? != 0 ]]; then
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exit 1
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fi
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(kdump_setup_bond "$_phydev" "$(get_nmcli_connection_show_cmd_by_ifname "$_phydev")") || exit 1
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echo " vlan=$(kdump_setup_ifname "$_netdev"):$_phydev" > "${initdir}/etc/cmdline.d/43vlan.conf"
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else
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_kdumpdev="$(kdump_setup_ifname "$_phydev")"
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@ -516,8 +507,8 @@ kdump_setup_znet() {
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kdump_get_ip_route()
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{
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local _route=$(/sbin/ip -o route get to "$1" 2>&1)
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if [[ $? != 0 ]]; then
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local _route
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if ! _route=$(/sbin/ip -o route get to "$1" 2>&1); then
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derror "Bad kdump network destination: $1"
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exit 1
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fi
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@ -561,8 +552,7 @@ kdump_install_net() {
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_znet_netdev=$(find_online_znet_device)
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if [[ -n "$_znet_netdev" ]]; then
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_nm_show_cmd_znet=$(get_nmcli_connection_show_cmd_by_ifname "$_znet_netdev")
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(kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet")
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if [[ $? != 0 ]]; then
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if ! (kdump_setup_znet "$_znet_netdev" "$_nm_show_cmd_znet"); then
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derror "Failed to set up znet"
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exit 1
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fi
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@ -592,10 +582,7 @@ kdump_install_net() {
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if kdump_is_bridge "$_netdev"; then
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kdump_setup_bridge "$_netdev"
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elif kdump_is_bond "$_netdev"; then
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(kdump_setup_bond "$_netdev" "$_nm_show_cmd")
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if [[ $? != 0 ]]; then
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exit 1
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fi
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(kdump_setup_bond "$_netdev" "$_nm_show_cmd") || exit 1
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elif kdump_is_team "$_netdev"; then
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kdump_setup_team "$_netdev"
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elif kdump_is_vlan "$_netdev"; then
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@ -837,8 +824,10 @@ kdump_setup_iscsi_device() {
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fi
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# Setup initator
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initiator_str=$(kdump_get_iscsi_initiator)
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[[ $? -ne "0" ]] && derror "Failed to get initiator name" && return 1
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if ! initiator_str=$(kdump_get_iscsi_initiator); then
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derror "Failed to get initiator name"
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return 1
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fi
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# If initiator details do not exist already, append.
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if ! grep -q "$initiator_str" "$netroot_conf"; then
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@ -878,8 +867,7 @@ get_alias() {
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for ip in $ips
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do
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# in /etc/hosts, alias can come at the 2nd column
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entries=$(grep "$ip" /etc/hosts | awk '{ $1=""; print $0 }')
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if [[ $? -eq 0 ]]; then
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if entries=$(grep "$ip" /etc/hosts | awk '{ $1=""; print $0 }'); then
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alias_set="$alias_set $entries"
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fi
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done
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@ -1004,8 +992,7 @@ kdump_install_random_seed() {
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kdump_install_systemd_conf() {
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# Kdump turns out to require longer default systemd mount timeout
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# than 1st kernel(90s by default), we use default 300s for kdump.
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grep -r "^[[:space:]]*DefaultTimeoutStartSec=" "${initdir}/etc/systemd/system.conf"* &>/dev/null
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if [[ $? -ne 0 ]]; then
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if ! grep -q -r "^[[:space:]]*DefaultTimeoutStartSec=" "${initdir}/etc/systemd/system.conf"*; then
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mkdir -p "${initdir}/etc/systemd/system.conf.d"
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echo "[Manager]" > "${initdir}/etc/systemd/system.conf.d/kdump.conf"
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echo "DefaultTimeoutStartSec=300s" >> "${initdir}/etc/systemd/system.conf.d/kdump.conf"
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108
kdumpctl
108
kdumpctl
@ -37,8 +37,7 @@ fi
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. /lib/kdump/kdump-logger.sh
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#initiate the kdump logger
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dlog_init
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if [[ $? -ne 0 ]]; then
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if ! dlog_init; then
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echo "failed to initiate the kdump logger."
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exit 1
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fi
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@ -47,8 +46,7 @@ single_instance_lock()
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{
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local rc timeout=5
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exec 9>/var/lock/kdump
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if [[ $? -ne 0 ]]; then
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if ! exec 9>/var/lock/kdump; then
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derror "Create file lock failed"
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exit 1
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fi
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@ -80,8 +78,7 @@ save_core()
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mkdir -p "$coredir"
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ddebug "cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete"
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cp --sparse=always /proc/vmcore "$coredir/vmcore-incomplete"
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if [[ $? == 0 ]]; then
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if cp --sparse=always /proc/vmcore "$coredir/vmcore-incomplete"; then
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mv "$coredir/vmcore-incomplete" "$coredir/vmcore"
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dinfo "saved a vmcore to $coredir"
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else
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@ -95,8 +92,7 @@ save_core()
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ddebug "makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg"
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makedumpfile --dump-dmesg "$coredir/vmcore" "$coredir/dmesg" >/dev/null 2>&1
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ddebug "dumpoops -d $coredir/dmesg"
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dumpoops -d "$coredir/dmesg" >/dev/null 2>&1
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if [[ $? == 0 ]]; then
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if dumpoops -d "$coredir/dmesg" >/dev/null 2>&1; then
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dinfo "kernel oops has been collected by abrt tool"
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fi
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fi
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@ -121,8 +117,7 @@ check_earlykdump_is_enabled()
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rebuild_kdump_initrd()
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{
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ddebug "rebuild kdump initrd: $MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER"
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$MKDUMPRD "$TARGET_INITRD" "$KDUMP_KERNELVER"
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if [[ $? != 0 ]]; then
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if ! $MKDUMPRD "$TARGET_INITRD" "$KDUMP_KERNELVER"; then
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derror "mkdumprd: failed to make kdump initrd"
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return 1
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fi
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@ -184,8 +179,7 @@ backup_default_initrd()
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dinfo "Backing up $DEFAULT_INITRD before rebuild."
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# save checksum to verify before restoring
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sha1sum "$DEFAULT_INITRD" > "$INITRD_CHECKSUM_LOCATION"
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cp "$DEFAULT_INITRD" "$DEFAULT_INITRD_BAK"
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if [[ $? -ne 0 ]]; then
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if ! cp "$DEFAULT_INITRD" "$DEFAULT_INITRD_BAK"; then
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dwarn "WARNING: failed to backup $DEFAULT_INITRD."
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rm -f "$DEFAULT_INITRD_BAK"
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fi
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@ -210,8 +204,7 @@ restore_default_initrd()
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dwarn "WARNING: checksum mismatch! Can't restore original initrd.."
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else
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rm -f $INITRD_CHECKSUM_LOCATION
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mv "$DEFAULT_INITRD_BAK" "$DEFAULT_INITRD"
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if [[ $? -eq 0 ]]; then
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if mv "$DEFAULT_INITRD_BAK" "$DEFAULT_INITRD"; then
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derror "Restoring original initrd as fadump mode is disabled."
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sync
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fi
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@ -308,8 +301,7 @@ get_pcs_cluster_modified_files()
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setup_initrd()
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{
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prepare_kdump_bootinfo
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if [[ $? -ne 0 ]]; then
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if ! prepare_kdump_bootinfo; then
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derror "failed to prepare for kdump bootinfo."
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return 1
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fi
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@ -372,8 +364,7 @@ check_files_modified()
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files="$files /lib/modules/$KDUMP_KERNELVER/modules.dep"
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fi
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for _module in $EXTRA_MODULES; do
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_module_file="$(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_module" 2>/dev/null)"
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if [[ $? -eq 0 ]]; then
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if _module_file="$(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_module" 2>/dev/null)"; then
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files="$files $_module_file"
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for _dep_modules in $(modinfo -F depends "$_module" | tr ',' ' '); do
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files="$files $(modinfo --set-version "$KDUMP_KERNELVER" --filename "$_dep_modules" 2>/dev/null)"
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@ -389,8 +380,7 @@ check_files_modified()
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# HOOKS is mandatory and need to check the modification time
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files="$files $HOOKS"
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check_exist "$files" && check_executable "$EXTRA_BINS"
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[[ $? -ne 0 ]] && return 2
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check_exist "$files" && check_executable "$EXTRA_BINS" || return 2
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for file in $files; do
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if [[ -e "$file" ]]; then
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@ -455,7 +445,7 @@ check_drivers_modified()
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# Skip deprecated/invalid driver name or built-in module
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_module_name=$(modinfo --set-version "$KDUMP_KERNELVER" -F name "$_driver" 2>/dev/null)
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_module_filename=$(modinfo --set-version "$KDUMP_KERNELVER" -n "$_driver" 2>/dev/null)
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if [[ $? -ne 0 ]] || [[ -z "$_module_name" ]] || [[ "$_module_filename" = *"(builtin)"* ]]; then
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if [[ -z "$_module_name" ]] || [[ -z "$_module_filename" ]] || [[ "$_module_filename" = *"(builtin)"* ]]; then
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continue
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fi
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if ! [[ " $_old_drivers " == *" $_module_name "* ]]; then
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@ -505,8 +495,7 @@ check_fs_modified()
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# if --mount argument present then match old and new target, mount
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# point and file system. If any of them mismatches then rebuild
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echo "$_dracut_args" | grep -q "\-\-mount"
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if [[ $? -eq 0 ]];then
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if echo "$_dracut_args" | grep -q "\-\-mount"; then
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# shellcheck disable=SC2046
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set -- $(echo "$_dracut_args" | awk -F "--mount '" '{print $2}' | cut -d' ' -f1,2,3)
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_old_dev=$1
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@ -558,11 +547,7 @@ check_rebuild()
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local force_rebuild force_no_rebuild
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local ret system_modified="0"
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setup_initrd
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if [[ $? -ne 0 ]]; then
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return 1
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fi
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setup_initrd || return 1
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force_no_rebuild=$(kdump_get_conf_val force_no_rebuild)
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force_no_rebuild=${force_no_rebuild:-0}
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@ -730,8 +715,7 @@ check_and_wait_network_ready()
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# if server removes the authorized_keys or, no /root/.ssh/kdump_id_rsa
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ddebug "$errmsg"
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echo "$errmsg" | grep -q "Permission denied\|No such file or directory\|Host key verification failed"
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if [[ $? -eq 0 ]]; then
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if echo "$errmsg" | grep -q "Permission denied\|No such file or directory\|Host key verification failed"; then
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derror "Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"kdumpctl propagate\""
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return 1
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fi
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@ -757,16 +741,11 @@ check_and_wait_network_ready()
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check_ssh_target()
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{
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check_and_wait_network_ready
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if [[ $? -ne 0 ]]; then
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return 1
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fi
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return 0
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}
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propagate_ssh_key()
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{
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check_ssh_config
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if [[ $? -ne 0 ]]; then
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if ! check_ssh_config; then
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derror "No ssh config specified in $KDUMP_CONFIG_FILE. Can't propagate"
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exit 1
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fi
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@ -873,8 +852,7 @@ local_fs_dump_target()
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{
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local _target
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_target=$(grep -E "^ext[234]|^xfs|^btrfs|^minix" /etc/kdump.conf)
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if [[ $? -eq 0 ]]; then
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if _target=$(grep -E "^ext[234]|^xfs|^btrfs|^minix" /etc/kdump.conf); then
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echo "$_target" | awk '{print $2}'
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fi
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}
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@ -936,8 +914,7 @@ check_fence_kdump_config()
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return 1
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fi
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# node can be ipaddr
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echo "$ipaddrs " | grep -q "$node "
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if [[ $? -eq 0 ]]; then
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if echo "$ipaddrs " | grep -q "$node "; then
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derror "Option fence_kdump_nodes cannot contain $node"
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return 1
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fi
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@ -1031,14 +1008,12 @@ check_final_action_config()
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start()
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{
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check_dump_feasibility
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if [[ $? -ne 0 ]]; then
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if ! check_dump_feasibility; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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check_config
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if [[ $? -ne 0 ]]; then
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if ! check_config; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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@ -1047,14 +1022,12 @@ start()
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selinux_relabel
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fi
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save_raw
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if [[ $? -ne 0 ]]; then
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if ! save_raw; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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check_current_status
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if [[ $? == 0 ]]; then
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if check_current_status; then
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dwarn "Kdump already running: [WARNING]"
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return 0
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fi
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@ -1066,14 +1039,12 @@ start()
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fi
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fi
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check_rebuild
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if [[ $? != 0 ]]; then
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if ! check_rebuild; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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start_dump
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if [[ $? != 0 ]]; then
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if ! start_dump; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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@ -1083,8 +1054,7 @@ start()
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reload()
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{
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check_current_status
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if [[ $? -ne 0 ]]; then
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if ! check_current_status; then
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dwarn "Kdump was not running: [WARNING]"
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fi
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@ -1092,24 +1062,20 @@ reload()
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reload_fadump
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return $?
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else
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stop_kdump
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fi
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if [[ $? -ne 0 ]]; then
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if ! stop_kdump; then
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derror "Stopping kdump: [FAILED]"
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return 1
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fi
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fi
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dinfo "Stopping kdump: [OK]"
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setup_initrd
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if [[ $? -ne 0 ]]; then
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if ! setup_initrd; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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start_dump
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if [[ $? -ne 0 ]]; then
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if ! start_dump; then
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derror "Starting kdump: [FAILED]"
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return 1
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fi
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@ -1137,6 +1103,7 @@ stop_kdump()
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$KEXEC -p -u
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fi
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# shellcheck disable=SC2181
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if [[ $? != 0 ]]; then
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derror "kexec: failed to unload kdump kernel"
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return 1
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@ -1148,16 +1115,14 @@ stop_kdump()
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reload_fadump()
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{
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echo 1 > $FADUMP_REGISTER_SYS_NODE
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if [[ $? == 0 ]]; then
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if echo 1 > $FADUMP_REGISTER_SYS_NODE; then
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dinfo "fadump: re-registered successfully"
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return 0
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else
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# FADump could fail on older kernel where re-register
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# support is not enabled. Try stop/start from userspace
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# to handle such scenario.
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stop_fadump
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if [[ $? == 0 ]]; then
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if stop_fadump; then
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start_fadump
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return $?
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fi
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@ -1174,6 +1139,7 @@ stop()
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stop_kdump
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fi
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# shellcheck disable=SC2181
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if [[ $? != 0 ]]; then
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derror "Stopping kdump: [FAILED]"
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return 1
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@ -1184,10 +1150,7 @@ stop()
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}
|
||||
|
||||
rebuild() {
|
||||
check_config
|
||||
if [[ $? -ne 0 ]]; then
|
||||
return 1
|
||||
fi
|
||||
check_config || return 1
|
||||
|
||||
if check_ssh_config; then
|
||||
if ! check_ssh_target; then
|
||||
@ -1195,10 +1158,7 @@ rebuild() {
|
||||
fi
|
||||
fi
|
||||
|
||||
setup_initrd
|
||||
if [[ $? -ne 0 ]]; then
|
||||
return 1
|
||||
fi
|
||||
setup_initrd || return 1
|
||||
|
||||
dinfo "Rebuilding $TARGET_INITRD"
|
||||
rebuild_initrd
|
||||
|
||||
40
mkdumprd
40
mkdumprd
@ -17,8 +17,7 @@ fi
|
||||
export IN_KDUMP=1
|
||||
|
||||
#initiate the kdump logger
|
||||
dlog_init
|
||||
if [[ $? -ne 0 ]]; then
|
||||
if ! dlog_init; then
|
||||
echo "failed to initiate the kdump logger."
|
||||
exit 1
|
||||
fi
|
||||
@ -114,18 +113,12 @@ mkdir_save_path_ssh()
|
||||
{
|
||||
local _opt _dir
|
||||
_opt=(-i "$SSH_KEY_LOCATION" -o BatchMode=yes -o StrictHostKeyChecking=yes)
|
||||
ssh -qn "${_opt[@]}" "$1" mkdir -p "$SAVE_PATH" 2>&1 > /dev/null
|
||||
_ret=$?
|
||||
if [[ $_ret -ne 0 ]]; then
|
||||
ssh -qn "${_opt[@]}" "$1" mkdir -p "$SAVE_PATH" &>/dev/null || \
|
||||
perror_exit "mkdir failed on $1:$SAVE_PATH"
|
||||
fi
|
||||
|
||||
#check whether user has write permission on $1:$SAVE_PATH
|
||||
_dir=$(ssh -qn "${_opt[@]}" "$1" mktemp -dqp "$SAVE_PATH" 2>/dev/null)
|
||||
_ret=$?
|
||||
if [[ $_ret -ne 0 ]]; then
|
||||
# check whether user has write permission on $1:$SAVE_PATH
|
||||
_dir=$(ssh -qn "${_opt[@]}" "$1" mktemp -dqp "$SAVE_PATH" 2>/dev/null) || \
|
||||
perror_exit "Could not create temporary directory on $1:$SAVE_PATH. Make sure user has write permission on destination"
|
||||
fi
|
||||
ssh -qn "${_opt[@]}" "$1" rmdir "$_dir"
|
||||
|
||||
return 0
|
||||
@ -162,11 +155,7 @@ check_size() {
|
||||
;;
|
||||
*)
|
||||
return
|
||||
esac
|
||||
|
||||
if [[ $? -ne 0 ]]; then
|
||||
perror_exit "Check dump target size failed"
|
||||
fi
|
||||
esac || perror_exit "Check dump target size failed"
|
||||
|
||||
if [[ "$avail" -lt "$memtotal" ]]; then
|
||||
dwarn "Warning: There might not be enough space to save a vmcore."
|
||||
@ -227,8 +216,7 @@ check_user_configured_target()
|
||||
if [[ -n "$_mnt" ]]; then
|
||||
if ! is_mounted "$_mnt"; then
|
||||
if [[ $_opt = *",noauto"* ]]; then
|
||||
mount "$_mnt"
|
||||
[[ $? -ne 0 ]] && mount_failure "$_target" "$_mnt" "$_fstype"
|
||||
mount "$_mnt" || mount_failure "$_target" "$_mnt" "$_fstype"
|
||||
_mounted=$_mnt
|
||||
else
|
||||
perror_exit "Dump target \"$_target\" is neither mounted nor configured as \"noauto\""
|
||||
@ -237,8 +225,7 @@ check_user_configured_target()
|
||||
else
|
||||
_mnt=$MKDUMPRD_TMPMNT
|
||||
mkdir -p "$_mnt"
|
||||
mount "$_target" "$_mnt" -t "$_fstype" -o defaults
|
||||
[[ $? -ne 0 ]] && mount_failure "$_target" "" "$_fstype"
|
||||
mount "$_target" "$_mnt" -t "$_fstype" -o defaults || mount_failure "$_target" "" "$_fstype"
|
||||
_mounted=$_mnt
|
||||
fi
|
||||
|
||||
@ -283,11 +270,9 @@ verify_core_collector() {
|
||||
}
|
||||
|
||||
add_mount() {
|
||||
local _mnt=$(to_mount "$@")
|
||||
local _mnt
|
||||
|
||||
if [[ $? -ne 0 ]]; then
|
||||
exit 1
|
||||
fi
|
||||
_mnt=$(to_mount "$@") || exit 1
|
||||
|
||||
add_dracut_mount "$_mnt"
|
||||
}
|
||||
@ -349,7 +334,7 @@ is_unresettable()
|
||||
#return true if resettable
|
||||
check_resettable()
|
||||
{
|
||||
local _ret _target _override_resettable
|
||||
local _target _override_resettable
|
||||
|
||||
_override_resettable=$(kdump_get_conf_val override_resettable)
|
||||
OVERRIDE_RESETTABLE=${_override_resettable:-$OVERRIDE_RESETTABLE}
|
||||
@ -357,10 +342,7 @@ check_resettable()
|
||||
perror_exit "override_resettable value '$OVERRIDE_RESETTABLE' is invalid"
|
||||
fi
|
||||
|
||||
for_each_block_target is_unresettable
|
||||
_ret=$?
|
||||
|
||||
[[ $_ret -eq 0 ]] && return
|
||||
for_each_block_target is_unresettable && return
|
||||
|
||||
return 1
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user