New Full AU Format w/ support for kernel partition.

src/platform/memento_softwareupdate/memento_updater.sh

Index: src/platform/memento_softwareupdate/memento_updater.sh
diff --git a/src/platform/memento_softwareupdate/memento_updater.sh b/src/platform/memento_softwareupdate/memento_updater.sh
index 37e507733c1019bbe52aa88c211912a8d2965af6..9004afdac58d2177d78a3670630bede7ade7d49f 100644
--- a/src/platform/memento_softwareupdate/memento_updater.sh
+++ b/src/platform/memento_softwareupdate/memento_updater.sh
@@ -146,6 +146,12 @@ NEW_PART_NUM=${INSTALL_DEV##*/*[a-z]}
 # partitions 4&5 are image B.
 KINSTALL_DEV=$(echo $INSTALL_DEV | tr '35' '24')
 
+if [ "$KINSTALL_DEV" = "$INSTALL_DEV" ]; then
+  log "kernel install partition the same as rootfs install partition!"
+  log "  (${KINSTALL_DEV})"
+  exit 1
+fi
+
 # Find whole disk device.
 ROOT_DEV=${INSTALL_DEV%%[0-9]*}
 
@@ -197,9 +203,10 @@ CHECKSUM_FILE="/tmp/memento_autoupdate_checksum"
 RETURNED_CODES=$(wget -O - --load-cookies <(echo "$COOKIES") \
     "$IMG_URL" 2>> "$MEMENTO_AU_LOG" | \
     tee >(openssl sha1 -binary | openssl base64 > "$CHECKSUM_FILE") | \
-    gzip -d > "$INSTALL_DEV" ; echo ${PIPESTATUS[*]})
+    gzip -d | $(dirname "$0")/split_write "$KINSTALL_DEV" "$INSTALL_DEV" ; \
+    echo ${PIPESTATUS[*]})
 
-EXPECTED_CODES="0 0 0"
+EXPECTED_CODES="0 0 0 0"
 CALCULATED_CS=$(cat "$CHECKSUM_FILE")
 rm -f "$CHECKSUM_FILE"
 
@@ -264,8 +271,7 @@ if [ -z "${FLAGS_dst_partition}" ]; then
   fi
 fi
 
-"$MOUNTPOINT"/postinst "$INSTALL_DEV" "$KINSTALL_DEV" 2>&1 | \
-  cat >> "$MEMENTO_AU_LOG"
+"$MOUNTPOINT"/postinst "$INSTALL_DEV" 2>&1 | cat >> "$MEMENTO_AU_LOG"
 [ "${PIPESTATUS[*]}" = "0 0" ]
 POSTINST_RETURN_CODE=$?
 umount "$MOUNTPOINT"