I received my first RPi Zero yesterday, I was super stoked, but only had time to open it today.
This will be a multi-part tutorial on my findings and setups. This will start off with the basics on getting it up and running headless.
I will cover the USB Gadget API Framework, minimal unattended netinstaller and USB OTG connector and in a later post.
This will focus on the headless setup and configuration of a clean Zero. I will start with Raspbian Lite a I am on the road and have nothing but a MBP and my Zero.
The quick and dirty way
(No USB keyboard, mouse, HDMI monitor needed)
I will be using the following:
- Macbook Pro (macOS Sierra 10.12.4)
- microSD card
- RPi Zero
- MicroUSB to USB Cable
Lets firstly enable ssh and edit the config.txt to set the DesignWare HS OTG USB controller to use the ethernet module.
sudo touch /Volumes/boot/ssh sudo echo "dtoverlay=dwc2" >> /Volumes/boot/config.txt
Now edit cmdline.txt
sudo vi /Volumes/boot/cmdline.txt
And add this after "rootwait"
Unmount the microSD card, place it in the RPi.
Plugin the first USB cable into the PWR socket, then plug the second into the USB. Normally it takes about 60 seconds, dependent on your image.
If all went well you should ssh access to raspberrypi.local via USB.
After a new install there are a few things you're probably going to want to do, I only use headless servers, so here are some of my mods:
Package update and upgrade
sudo apt-get update sudo apt-get upgrade -y -o Dpkg::Options::="--force-confold"
sudo apt-get install -y rpi-update raspi-config lsb-release
RPi kernel update
sudo BRANCH=next rpi-update
sudo echo "blacklist ipv6" > /etc/modprobe.d/ipv6.conf
Disable display manager service
sudo systemctl disable display-manager.service
Boot up into multi-user mode
sudo systemctl set-default multi-user.target
List all open ports
sudo vi /etc/rc.local
add before exit();
Backup / Restore SD card images
I you would like backup and compress your RPi image you can use the following:
sudo dd if=/dev/rdisk4 bs=1m | gzip > ~/RPi-backup.gz
Restore from a compressed backup as follows:
gzip -dc ~/RPi-backup.gz | sudo dd of=/dev/rdisk4 bs=1m
Uncompressed would be:
sudo dd if=/dev/rdisk4 of=~/RPi-backup2.img bs=1m sudo dd if=~/RPi-backup2.img of=/dev/rdisk4 bs=1m
diskutil list diskutil unmountDisk /dev/disk# sudo dd bs=1m if=image.img of=/dev/rdisk#