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-rw-r--r--defaultenv/defaultenv-1/bin/_update_help15
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diff --git a/defaultenv/defaultenv-1/bin/_update_help b/defaultenv/defaultenv-1/bin/_update_help
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+#!/bin/sh
+
+echo "usage: update -t <kernel|rootfs|barebox|bareboxenv|xload|oftree> -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 "default mode is tftp"
+echo "type update -t kernel -d <nor|nand|disk> [-m tftp|xmodem|nfs] [-f imagename] to update kernel into flash"
+echo "type update -t rootfs -d <nor|nand> [-m tftp|xmodem|nfs] [-f imagename] to update rootfs into flash"
+echo "type update -t barebox -d <nor|nand> [-m tftp|xmodem|nfs] [-f imagename] to update barebox into flash"
+echo "type update -t bareboxenv -d <nor|nand> [-m tftp|xmodem|nfs] [-f imagename] to update bareboxenv into flash"
+echo "type update -t xload -d <nor|nand> [-m tftp|xmodem|nfs] [-f imagename] to update xload into flash"
+echo "type update -t oftree -d <nor|nand> [-m tftp|xmodem|nfs] [-f imagename] to update oftree into flash"