[PATCH openbmc 1/7] initfs: shutdown: comment on update success

[OpenBMC Patches]

From: "Milton D. Miller II" <miltonm at us.ibm.com>

Print an error from the shutdown script when the update fails.

Update is changing to return codes when its preconditions are not
met, so be more verbose about its success to provide a means to
debug flash updates not occurring.

We could add a sulogin or sushell but its not clear what would be
desired here.  If so the message should include "rmdir /oldroot
to get a PID 1 shell" like /takever works in init.

Signed-off-by: Milton Miller <miltonm at us.ibm.com>
---
 .../recipes-phosphor/obmc-phosphor-initfs/files/obmc-shutdown.sh  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-shutdown.sh b/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-shutdown.sh
index 8d5d0c9..8d5c672 100644
--- a/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-shutdown.sh
+++ b/meta-phosphor/common/recipes-phosphor/obmc-phosphor-initfs/files/obmc-shutdown.sh
@@ -44,6 +44,14 @@ then
 	if test -x $update
 	then
 		$update --clean-saved-files
+		remaining=$(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
 	else
 		echo 1>&2 "Flash update requested but $update program missing!"
 	fi
-- 
2.8.3