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-rw-r--r--defaultenv/bin/_update_help7
1 files changed, 4 insertions, 3 deletions
diff --git a/defaultenv/bin/_update_help b/defaultenv/bin/_update_help
index a23f00fe0a..1d9b28ea00 100644
--- a/defaultenv/bin/_update_help
+++ b/defaultenv/bin/_update_help
@@ -1,10 +1,11 @@
#!/bin/sh
-echo "usage: $0 -t <kernel|rootfs> -d <nor|nand> [-f imagename] -c"
+echo "usage: $0 -t <kernel|rootfs> -d <nor|nand> [-m tftp|xmodem] [-f imagename] -c"
echo "update tools."
echo ""
echo "options"
echo " -c to check the crc32 for the image and flashed one"
echo ""
-echo "type update -t kernel -d <nor|nand> [-f imagename] to update kernel into flash"
-echo "type update -t rootfs -d <nor|nand> [-f imagename] to update rootfs into flash"
+echo "default mode is tftp"
+echo "type update -t kernel -d <nor|nand> [-m tftp|xmodem] [-f imagename] to update kernel into flash"
+echo "type update -t rootfs -d <nor|nand> [-m tftp|xmodem] [-f imagename] to update rootfs into flash"