From b6cc58f0950950f0aab34f30b529d059c87e1fe5 Mon Sep 17 00:00:00 2001
From: Sam Calisch <sam.calisch@cba.mit.edu>
Date: Thu, 5 Oct 2017 13:25:13 -0400
Subject: [PATCH] Update RaspberryPi.md

---
 openocd/RaspberryPi.md | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/openocd/RaspberryPi.md b/openocd/RaspberryPi.md
index 526816f..db6dbc0 100644
--- a/openocd/RaspberryPi.md
+++ b/openocd/RaspberryPi.md
@@ -41,8 +41,13 @@ make
 sudo make install
 ```
 
-6. Get a bootloader.  Adafruit's is nice.
-7. Write openocd.cfg.
-8. sudo openocd
+6. Back up the sd card!  If you corrupt the card, you can skip steps 1-5 if you have a backup.
+```
+sudo dd if=/dev/diskn of=~/SDCardBackup.dmg
+```
+
+7. Get a bootloader.  Adafruit's is nice.
+8. Write openocd.cfg.
+9. sudo openocd
 
 
-- 
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