[Solved] CH340G chip Arduino nano MAC OS X Yosemite install problem with a twist

Development Tools IDE 1.x
1

I have this cheap Arduino nano lying around so I decided to use it on a mac. Looked for driver and read a few posts:

http://forum.arduino.cc/index.php?topic=261375.75

http://forum.arduino.cc/index.php?topic=226370.0

I installed the official driver from the manufacturer:

I also attempted to disable some feature of mac OS X using:

nvram boot-args="kext-dev-mode=1"

It didn't run:

nvram: Error setting variable - 'boot-args': (iokit/common) general error

I have the root access, I think. It's a university computer. What is mac os root called? root or else?

Thanks.

2

OK I found the solution myself. When I was logged in as admin, I thought I can skip the sudo command and run the nvram command directly. I was wrong. I had to use sudo nvram. This is probably a protection so an admin doesn't accidentaly shoots himself by the foot when typing in a dangerous command by mistake.