fix(dracut): correct regression with multiple rd.break= options

Since the introduction of the `dracut-util` binary to parse kernel command line arguments, if the user inputs multiple `rd.break=` options, dracut only stops the boot process at the last one. ``` [ 0.985362] localhost dracut-cmdline[245]: /bin/dracut-cmdline@18(): info 'Using kernel command line parameters:' ' ... rd.debug rd.break=cmdline rd.break=pre-pivot' ... [ 1.044979] localhost dracut-cmdline[245]: /bin/dracut-cmdline@48(): getarg rd.break=cmdline -d rdbreak=cmdline [ 1.044979] localhost dracut-cmdline[245]: /lib/dracut-lib.sh@155(getarg): debug_off [ 1.044979] localhost dracut-cmdline[245]: /lib/dracut-lib.sh@23(debug_off): set +x [ 1.044979] localhost dracut-cmdline[245]: /lib/dracut-lib.sh@218(getarg): return 1 ``` For options that can be specified multiple times, `getargs` should be used instead. ``` master> export CMDLINE="rd.break=cmdline rd.break=pre-udev rd.break=pre-pivot" master> ./dracut-getarg rd.break=cmdline master> echo $? 1 master> ./dracut-getarg rd.break=pre-udev master> echo $? 1 master> ./dracut-getarg rd.break=pre-pivot master> echo $? 0 master> ./dracut-getargs rd.break=cmdline cmdline master> echo $? 0 master> ./dracut-getargs rd.break=pre-udev pre-udev master> echo $? 0 master> ./dracut-getargs rd.break=pre-pivot pre-pivot master> echo $? 0 ``` Fixes 501d82f
dracutdevs · Jan 16, 2024 · 36829b3 · 36829b3
1 parent 4980bad
commit 36829b3
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Showing 9 changed files with 18 additions and 18 deletions.
diff --git a/modules.d/98dracut-systemd/dracut-cmdline.sh b/modules.d/98dracut-systemd/dracut-cmdline.sh
@@ -45,7 +45,7 @@ export fstype
 
 make_trace_mem "hook cmdline" '1+:mem' '1+:iomem' '3+:slab'
 # run scriptlets to parse the command line
-getarg 'rd.break=cmdline' -d 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"
+getargs 'rd.break=cmdline' -d 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"
 source_hook cmdline
 
 [ -f /lib/dracut/parse-resume.sh ] && . /lib/dracut/parse-resume.sh

diff --git a/modules.d/98dracut-systemd/dracut-initqueue.sh b/modules.d/98dracut-systemd/dracut-initqueue.sh
@@ -9,7 +9,7 @@ type getarg > /dev/null 2>&1 || . /lib/dracut-lib.sh
 source_conf /etc/conf.d
 
 make_trace_mem "hook initqueue" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=initqueue' -d 'rdbreak=initqueue' && emergency_shell -n initqueue "Break before initqueue"
+getargs 'rd.break=initqueue' -d 'rdbreak=initqueue' && emergency_shell -n initqueue "Break before initqueue"
 
 RDRETRY=$(getarg rd.retry -d 'rd_retry=')
 RDRETRY=${RDRETRY:-180}

diff --git a/modules.d/98dracut-systemd/dracut-mount.sh b/modules.d/98dracut-systemd/dracut-mount.sh
@@ -9,7 +9,7 @@ source_conf /etc/conf.d
 
 make_trace_mem "hook mount" '1:shortmem' '2+:mem' '3+:slab'
 
-getarg 'rd.break=mount' -d 'rdbreak=mount' && emergency_shell -n mount "Break before mount"
+getargs 'rd.break=mount' -d 'rdbreak=mount' && emergency_shell -n mount "Break before mount"
 # mount scripts actually try to mount the root filesystem, and may
 # be sourced any number of times. As soon as one succeeds, no more are sourced.
 i=0

diff --git a/modules.d/98dracut-systemd/dracut-pre-mount.sh b/modules.d/98dracut-systemd/dracut-pre-mount.sh
@@ -11,7 +11,7 @@ source_conf /etc/conf.d
 make_trace_mem "hook pre-mount" '1:shortmem' '2+:mem' '3+:slab'
 # pre pivot scripts are sourced just before we doing cleanup and switch over
 # to the new root.
-getarg 'rd.break=pre-mount' 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break before pre-mount"
+getargs 'rd.break=pre-mount' -d 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break before pre-mount"
 source_hook pre-mount
 
 export -p > /dracut-state.sh

diff --git a/modules.d/98dracut-systemd/dracut-pre-pivot.sh b/modules.d/98dracut-systemd/dracut-pre-pivot.sh
@@ -11,11 +11,11 @@ source_conf /etc/conf.d
 make_trace_mem "hook pre-pivot" '1:shortmem' '2+:mem' '3+:slab'
 # pre pivot scripts are sourced just before we doing cleanup and switch over
 # to the new root.
-getarg 'rd.break=pre-pivot' 'rdbreak=pre-pivot' && emergency_shell -n pre-pivot "Break before pre-pivot"
+getargs 'rd.break=pre-pivot' -d 'rdbreak=pre-pivot' && emergency_shell -n pre-pivot "Break before pre-pivot"
 source_hook pre-pivot
 
 # pre pivot cleanup scripts are sourced just before we switch over to the new root.
-getarg 'rd.break=cleanup' 'rdbreak=cleanup' && emergency_shell -n cleanup "Break before cleanup"
+getargs 'rd.break=cleanup' -d 'rdbreak=cleanup' && emergency_shell -n cleanup "Break before cleanup"
 source_hook cleanup
 
 _bv=$(getarg rd.break -d rdbreak) && [ -z "$_bv" ] \

diff --git a/modules.d/98dracut-systemd/dracut-pre-trigger.sh b/modules.d/98dracut-systemd/dracut-pre-trigger.sh
@@ -12,7 +12,7 @@ make_trace_mem "hook pre-trigger" '1:shortmem' '2+:mem' '3+:slab'
 
 source_hook pre-trigger
 
-getarg 'rd.break=pre-trigger' 'rdbreak=pre-trigger' && emergency_shell -n pre-trigger "Break before pre-trigger"
+getargs 'rd.break=pre-trigger' -d 'rdbreak=pre-trigger' && emergency_shell -n pre-trigger "Break before pre-trigger"
 
 udevadm control --reload > /dev/null 2>&1 || :
 

diff --git a/modules.d/98dracut-systemd/dracut-pre-udev.sh b/modules.d/98dracut-systemd/dracut-pre-udev.sh
@@ -10,7 +10,7 @@ source_conf /etc/conf.d
 make_trace_mem "hook pre-udev" '1:shortmem' '2+:mem' '3+:slab'
 # pre pivot scripts are sourced just before we doing cleanup and switch over
 # to the new root.
-getarg 'rd.break=pre-udev' 'rdbreak=pre-udev' && emergency_shell -n pre-udev "Break before pre-udev"
+getargs 'rd.break=pre-udev' -d 'rdbreak=pre-udev' && emergency_shell -n pre-udev "Break before pre-udev"
 source_hook pre-udev
 
 _modprobe_d=/etc/modprobe.d

diff --git a/modules.d/99base/init.sh b/modules.d/99base/init.sh
@@ -123,7 +123,7 @@ fi
 
 # run scriptlets to parse the command line
 make_trace_mem "hook cmdline" '1+:mem' '1+:iomem' '3+:slab'
-getarg 'rd.break=cmdline' -d 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"
+getargs 'rd.break=cmdline' -d 'rdbreak=cmdline' && emergency_shell -n cmdline "Break before cmdline"
 source_hook cmdline
 
 [ -z "$root" ] && die "No or empty root= argument"
@@ -133,7 +133,7 @@ export root rflags fstype netroot NEWROOT
 
 # pre-udev scripts run before udev starts, and are run only once.
 make_trace_mem "hook pre-udev" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=pre-udev' -d 'rdbreak=pre-udev' && emergency_shell -n pre-udev "Break before pre-udev"
+getargs 'rd.break=pre-udev' -d 'rdbreak=pre-udev' && emergency_shell -n pre-udev "Break before pre-udev"
 source_hook pre-udev
 
 UDEV_LOG=err
@@ -148,7 +148,7 @@ UDEV_QUEUE_EMPTY="udevadm settle --timeout=0"
 udevproperty "hookdir=$hookdir"
 
 make_trace_mem "hook pre-trigger" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=pre-trigger' -d 'rdbreak=pre-trigger' && emergency_shell -n pre-trigger "Break before pre-trigger"
+getargs 'rd.break=pre-trigger' -d 'rdbreak=pre-trigger' && emergency_shell -n pre-trigger "Break before pre-trigger"
 source_hook pre-trigger
 
 udevadm control --reload > /dev/null 2>&1 || :
@@ -157,7 +157,7 @@ udevadm trigger --type=subsystems --action=add > /dev/null 2>&1
 udevadm trigger --type=devices --action=add > /dev/null 2>&1
 
 make_trace_mem "hook initqueue" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=initqueue' -d 'rdbreak=initqueue' && emergency_shell -n initqueue "Break before initqueue"
+getargs 'rd.break=initqueue' -d 'rdbreak=initqueue' && emergency_shell -n initqueue "Break before initqueue"
 
 RDRETRY=$(getarg rd.retry -d 'rd_retry=')
 RDRETRY=${RDRETRY:-180}
@@ -223,10 +223,10 @@ unset RDRETRY
 # pre-mount happens before we try to mount the root filesystem,
 # and happens once.
 make_trace_mem "hook pre-mount" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=pre-mount' -d 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break before pre-mount"
+getargs 'rd.break=pre-mount' -d 'rdbreak=pre-mount' && emergency_shell -n pre-mount "Break before pre-mount"
 source_hook pre-mount
 
-getarg 'rd.break=mount' -d 'rdbreak=mount' && emergency_shell -n mount "Break before mount"
+getargs 'rd.break=mount' -d 'rdbreak=mount' && emergency_shell -n mount "Break before mount"
 # mount scripts actually try to mount the root filesystem, and may
 # be sourced any number of times. As soon as one succeeds, no more are sourced.
 _i_mount=0
@@ -262,12 +262,12 @@ done
 # pre pivot scripts are sourced just before we doing cleanup and switch over
 # to the new root.
 make_trace_mem "hook pre-pivot" '1:shortmem' '2+:mem' '3+:slab'
-getarg 'rd.break=pre-pivot' -d 'rdbreak=pre-pivot' && emergency_shell -n pre-pivot "Break before pre-pivot"
+getargs 'rd.break=pre-pivot' -d 'rdbreak=pre-pivot' && emergency_shell -n pre-pivot "Break before pre-pivot"
 source_hook pre-pivot
 
 make_trace_mem "hook cleanup" '1:shortmem' '2+:mem' '3+:slab'
 # pre pivot cleanup scripts are sourced just before we switch over to the new root.
-getarg 'rd.break=cleanup' -d 'rdbreak=cleanup' && emergency_shell -n cleanup "Break before cleanup"
+getargs 'rd.break=cleanup' -d 'rdbreak=cleanup' && emergency_shell -n cleanup "Break before cleanup"
 source_hook cleanup
 
 # By the time we get here, the root filesystem should be mounted.

diff --git a/modules.d/99shutdown/shutdown.sh b/modules.d/99shutdown/shutdown.sh
@@ -39,7 +39,7 @@ if [ "$ACTION" = "kexec" ] && ! command -v kexec > /dev/null 2>&1; then
 fi
 
 trap "emergency_shell --shutdown shutdown Signal caught!" 0
-getarg 'rd.break=pre-shutdown' && emergency_shell --shutdown pre-shutdown "Break before pre-shutdown"
+getargs 'rd.break=pre-shutdown' && emergency_shell --shutdown pre-shutdown "Break before pre-shutdown"
 
 source_hook pre-shutdown
 
@@ -155,7 +155,7 @@ elif [ -x /oldroot/bin/plymouth ]; then
     /oldroot/bin/plymouth --hide-splash
 fi
 
-getarg 'rd.break=shutdown' && emergency_shell --shutdown shutdown "Break before shutdown"
+getargs 'rd.break=shutdown' && emergency_shell --shutdown shutdown "Break before shutdown"
 
 case "$ACTION" in
     reboot | poweroff | halt)