Initial commit

meta-phosphor/recipes-phosphor/initrdscripts/files/obmc-shutdown.sh

@@ -0,0 +1,103 @@
+#!/bin/sh
+
+echo shutdown: "$@"
+
+export PS1="shutdown-sh# "
+# exec bin/sh
+
+cd /
+if [ ! -e /proc/mounts ]
+then
+	mkdir -p /proc
+	mount  proc /proc -tproc
+	umount_proc=1
+else
+	umount_proc=
+fi
+
+# Remove an empty oldroot, that means we are not invoked from systemd-shutdown
+rmdir /oldroot 2>/dev/null
+
+# Move /oldroot/run to /mnt in case it has the underlying rofs loop mounted.
+# Ordered before /oldroot the overlay is unmounted before the loop mount
+mkdir -p /mnt
+mount --move /oldroot/run /mnt
+
+set -x
+awk '/oldroot|mnt/ { print $2 }' < /proc/mounts | sort -r | while IFS= read -r f
+do
+	umount "$f"
+done
+set +x
+
+update=/run/initramfs/update
+image=/run/initramfs/image-
+
+wdt="-t 1 -T 5"
+wdrst="-T 15"
+
+if ls $image* > /dev/null 2>&1
+then
+	if test -x $update
+	then
+		if test -c /dev/watchdog
+		then
+			echo Pinging watchdog ${wdt+with args $wdt}
+			# shellcheck disable=SC2086
+			watchdog $wdt -F /dev/watchdog &
+			wd=$!
+		else
+			wd=
+		fi
+		$update --clean-saved-files
+		remaining=$(ls $image*)
+		if test -n "$remaining"
+		then
+			echo 1>&2 "Flash update failed to flash these images:"
+			echo 1>&2 "$remaining"
+		else
+			echo "Flash update completed."
+		fi
+
+		if test -n "$wd"
+		then
+			kill -9 $wd
+			if test -n "$wdrst"
+			then
+				echo "Resetting watchdog timeouts to $wdrst"
+				watchdog "$wdrst" -F /dev/watchdog &
+				sleep 1
+				# Kill the watchdog daemon, setting a timeout
+				# for the remaining shutdown work
+				kill -9 $!
+			fi
+		fi
+	else
+		echo 1>&2 "Flash update requested but $update program missing!"
+	fi
+fi
+
+echo Remaining mounts:
+cat /proc/mounts
+
+test "$umount_proc" && umount /proc && rmdir /proc
+
+# tcsattr(tty, TIOCDRAIN, mode) to drain tty messages to console
+test -t 1 && stty cooked 0<&1
+
+# Execute the command systemd told us to ...
+if test -d /oldroot  && test "$1"
+then
+	if test "$1" = kexec
+	then
+		$1 -f -e
+	else
+		$1 -f
+	fi
+fi
+
+
+echo "Execute ${1-reboot} -f if all unmounted ok, or exec /init"
+
+export PS1=shutdown-sh#\
+exec /bin/sh