1 files changed, 1 insertions, 2 deletions
diff --git a/docs/pages/bootloader.adoc b/docs/pages/bootloader.adoc
index 3b0cdb182..a80e75c4c 100644
--- a/docs/pages/bootloader.adoc
+++ b/docs/pages/bootloader.adoc
@@ -86,8 +86,7 @@ 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 3b0cdb182..a80e75c4c 100644 --- a/docs/pages/bootloader.adoc +++ b/docs/pages/bootloader.adoc
@@ -86,8 +86,7 @@ Then, to sign your firmware given a declaration of `FIRMWARE_DIR` and a firmware
86		86
87	[source, bash]	87	[source, bash]
88	----	88	----
89	shasum -a 512 -b $FIRMWARE_DIR/myfirmware > $SECRETS_DIR/message.txt	89	shasum -a 512 -b $FIRMWARE_DIR/myfirmware \| head -c128 \| xxd -p -r > $SECRETS_DIR/message.txt
90	cat $SECRETS_DIR/message.txt \| dd ibs=128 count=1 \| xxd -p -r > $SECRETS_DIR/message.txt
91	signify -S -s $SECRETS_DIR/key.sec -m $SECRETS_DIR/message.txt -x $SECRETS_DIR/message.txt.sig	90	signify -S -s $SECRETS_DIR/key.sec -m $SECRETS_DIR/message.txt -x $SECRETS_DIR/message.txt.sig
92	cp $FIRMWARE_DIR/myfirmware $FIRMWARE_DIR/myfirmware+signed	91	cp $FIRMWARE_DIR/myfirmware $FIRMWARE_DIR/myfirmware+signed
93	tail -n1 $SECRETS_DIR/message.txt.sig \| base64 -d -i - \| dd ibs=10 skip=1 >> $FIRMWARE_DIR/myfirmware+signed	92	tail -n1 $SECRETS_DIR/message.txt.sig \| base64 -d -i - \| dd ibs=10 skip=1 >> $FIRMWARE_DIR/myfirmware+signed