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-rwxr-xr-xscripts/image_signing/sign_firmware.sh1
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/image_signing/sign_firmware.sh b/scripts/image_signing/sign_firmware.sh
index 349988cc..45d739f9 100755
--- a/scripts/image_signing/sign_firmware.sh
+++ b/scripts/image_signing/sign_firmware.sh
@@ -21,6 +21,7 @@ Usage: $0 <input_firmware> <key_dir> <output_firmware> [firmware_version] \
Signs <input_firmware> with keys in <key_dir>, setting firmware version
to <firmware_version>. Outputs signed firmware to <output_firmware>.
+The <input_firmware> and <output_firmware> paths may be the same.
If no firmware version is specified, it is set as 1.
EOF
exit 1