Raspberry Pi Zero
The Pi Zero's values are opposite, and it only has one LED, led0 (labeled 'ACT' on the board). The LED defaults to on (brightness 0), and turns off (brightness 1) to indicate disk activity.
If you want to turn off the LED on the Pi Zero completely, run the following two commands:
<br />
# Set the Pi Zero ACT LED trigger to 'none'.<br />
echo none | sudo tee /sys/class/leds/led0/trigger
# Turn off the Pi Zero ACT LED.
echo 1 | sudo tee /sys/class/leds/led0/brightness
To make these settings permanent, add the following lines to your Pi's /boot/config.txt file and reboot:
<br />
# Disable the ACT LED on the Pi Zero.<br />
dtparam=act_led_trigger=none<br />
dtparam=act_led_activelow=on<br />
Sorry, but I don't get more 'realtime' than replying to messages here, or on the 2 github supports, or Facebook.
If I'm up, and check messages, I either research and reply, or if it's a common question, reply straight up.
No one can afford my personal rates for Tech Support, especially at the Holidays... :)