more war tales

1 files changed, 9 insertions, 0 deletions

diff --git a/readme.md b/readme.md
index a03a3d3..ca989da 100644
--- a/readme.md
+++ b/readme.md
@@ -43,6 +43,15 @@
   `linux-image-` package from chroot prints lots of errors, but seems to work
   fine afterwards?). I have not tried using the IoT images as an installation
   base, as we were steered away from using these images due to slow boot times.
+- Just use the decompiled device tree blobs instead of trying to compile the
+  device tree sources from the linux kernel.
+- You can check if your modified device tree blob is working by `cat`-ing the
+  output of `/sys/firmware/devicetree/base/led_extern/label` and checking if it
+  matches with the label you set in the `led_extern` section of your device
+  tree source file.
+- ZSH on the BeagleBone appears to print the prompt over command output if it
+  is not terminated with a newline character. You can work around this by using
+  `echo "$(cat ...)"` instead.
 
 # direct ethernet setup