1 files changed, 1 insertions, 2 deletions
diff --git a/docs/pages/bootloader.adoc b/docs/pages/bootloader.adoc
index d8d50040b..53f85d995 100644
--- a/docs/pages/bootloader.adoc
+++ b/docs/pages/bootloader.adoc
@@ -88,8 +88,7 @@ Then, to sign your firmware given a declaration of `FIRMWARE_DIR` and a firmware
 [source, bash]
 ----
-shasum -a 512 -b $FIRMWARE_DIR/myfirmware > $SECRETS_DIR/message.txt
+shasum -a 512 -b $FIRMWARE_DIR/myfirmware | head -c128 | xxd -p -r > $SECRETS_DIR/message.txt
-cat $SECRETS_DIR/message.txt | dd ibs=128 count=1 | xxd -p -r > $SECRETS_DIR/message.txt
 signify -S -s $SECRETS_DIR/key.sec -m $SECRETS_DIR/message.txt -x $SECRETS_DIR/message.txt.sig
 cp $FIRMWARE_DIR/myfirmware $FIRMWARE_DIR/myfirmware+signed
 tail -n1 $SECRETS_DIR/message.txt.sig | base64 -d -i - | dd ibs=10 skip=1 >> $FIRMWARE_DIR/myfirmware+signed

diff --git a/docs/pages/bootloader.adoc b/docs/pages/bootloader.adoc index d8d50040b..53f85d995 100644 --- a/docs/pages/bootloader.adoc +++ b/docs/pages/bootloader.adoc
@@ -88,8 +88,7 @@ Then, to sign your firmware given a declaration of `FIRMWARE_DIR` and a firmware
88		88
89	[source, bash]	89	[source, bash]
90	----	90	----
91	shasum -a 512 -b $FIRMWARE_DIR/myfirmware > $SECRETS_DIR/message.txt	91	shasum -a 512 -b $FIRMWARE_DIR/myfirmware \| head -c128 \| xxd -p -r > $SECRETS_DIR/message.txt
92	cat $SECRETS_DIR/message.txt \| dd ibs=128 count=1 \| xxd -p -r > $SECRETS_DIR/message.txt
93	signify -S -s $SECRETS_DIR/key.sec -m $SECRETS_DIR/message.txt -x $SECRETS_DIR/message.txt.sig	92	signify -S -s $SECRETS_DIR/key.sec -m $SECRETS_DIR/message.txt -x $SECRETS_DIR/message.txt.sig
94	cp $FIRMWARE_DIR/myfirmware $FIRMWARE_DIR/myfirmware+signed	93	cp $FIRMWARE_DIR/myfirmware $FIRMWARE_DIR/myfirmware+signed
95	tail -n1 $SECRETS_DIR/message.txt.sig \| base64 -d -i - \| dd ibs=10 skip=1 >> $FIRMWARE_DIR/myfirmware+signed	94	tail -n1 $SECRETS_DIR/message.txt.sig \| base64 -d -i - \| dd ibs=10 skip=1 >> $FIRMWARE_DIR/myfirmware+signed