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Install Ubuntu, Docker and Home Assistant on Rock Pi 4b

1) Download and Install Ubuntu Image on eMMC Card

Download here - https://wiki.radxa.com/Rockpi4/downloads

Follow the instructions to install the image to eMMC Card - https://wiki.radxa.com/Rockpi4/getting_started

2) Initial Setup

Login to your Rock Pi

Default username: rock
Default password: rock

Install openssh-server, nano and get dhcp assigned IP

$ sudo apt-get update
$ sudo apt-get install openssh-server nano
$ ifconfig

SSH to Rock Pi

ssh rock@x.x.x.x

3) Move root filesystem to NVMe Drive (Optional)

Check that NVMe drive is recognized

$ lsblk

	Output:
		NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
		mmcblk1      179:0    0  14.5G  0 disk
		|-mmcblk1p1  179:1    0   3.9M  0 part
		|-mmcblk1p2  179:2    0     4M  0 part
		|-mmcblk1p3  179:3    0     4M  0 part
		|-mmcblk1p4  179:4    0   112M  0 part /boot
		`-mmcblk1p5  179:5    0  14.3G  0 part /
		mmcblk1boot0 179:32   0     4M  1 disk
		mmcblk1boot1 179:64   0     4M  1 disk
		mmcblk1rpmb  179:96   0     4M  0 disk
		nvme0n1      259:0    0 232.9G  0 disk  <-----NVMe Drive

Partition and format NVMe Drive

$ sudo fdisk /dev/nvme0n1

• Enter "n" to create new partition.
  
• Enter "p" for primary partition.
  
• Enter "1" for partition number.
  
• Select default for "First Sector" and "Last Sector".
  
• If prompted enter "y" to remove existing signature.
  
• Enter "w" to write partition information.

Check that new partition was created

$ lsblk

	Output:
		NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
		mmcblk1      179:0    0  14.5G  0 disk
		|-mmcblk1p1  179:1    0   3.9M  0 part
		|-mmcblk1p2  179:2    0     4M  0 part
		|-mmcblk1p3  179:3    0     4M  0 part
		|-mmcblk1p4  179:4    0   112M  0 part /boot
		`-mmcblk1p5  179:5    0  14.3G  0 part /
		mmcblk1boot0 179:32   0     4M  1 disk
		mmcblk1boot1 179:64   0     4M  1 disk
		mmcblk1rpmb  179:96   0     4M  0 disk
		nvme0n1      259:0    0 232.9G  0 disk
		`-nvme0n1p1  259:2    0 232.9G  0 part  <----- New Partition

Move root filesystem to NVMe

$ sudo dd if=/dev/disk/by-partuuid/b921b045-1df0-41c3-af44-4c6f280d3fae conv=sync,noerror bs=4M of=/dev/nvme0n1p1

Make sure NVMe drive has no errors

$ sudo e2fsck -f /dev/nvme0n1p1

Extend filesystem to use entire NVMe drive

$ sudo resize2fs /dev/nvme0n1p1

Make sure NVMe drive has no errors after resize

$ sudo e2fsck -f /dev/nvme0n1p1

Change extlinux.conf to mount root to NVMe drive

$ sudo nano /boot/extlinux/extlinux.conf
	change - root=PARTUUID=b921b045-1d
    	    to - root=/dev/nvme0n1p1

Reboot

$ sudo reboot

Check that root file system is mounted to NvME

$ lsblk

	Output:
		NAME         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
		mmcblk1      179:0    0  14.5G  0 disk
		|-mmcblk1p1  179:1    0   3.9M  0 part
		|-mmcblk1p2  179:2    0     4M  0 part
		|-mmcblk1p3  179:3    0     4M  0 part
		|-mmcblk1p4  179:4    0   112M  0 part /boot
		`-mmcblk1p5  179:5    0  14.3G  0 part 
		mmcblk1boot0 179:32   0     4M  1 disk
		mmcblk1boot1 179:64   0     4M  1 disk
		mmcblk1rpmb  179:96   0     4M  0 disk
		nvme0n1      259:0    0 232.9G  0 disk
		`-nvme0n1p1  259:2    0 232.9G  0 part /  <----- New root mount point

4) Setup System

Unminimize the ubuntu image

$ sudo unminimize
$ sudo reboot

Disable WiFi Interface (Optional)

$ sudo nano /etc/modprobe.d/blacklist.conf

	Add the following two lines to the end of the file
        # Wireless Networking
        blacklist bcmdhd

$ sudo reboot

Create the "hosts" file

$ sudo nano /etc/hosts

	Add:
		127.0.0.1       localhost
		127.0.1.1       rockpi.yourdomain.local       rockpi
		192.168.1.14    rockpi.yourdomain.local       rockpi

Change "hostname" file

$ sudo nano /etc/hostname

	Change: localhost.localdomain To: rockpi

Setup Static IP

$ sudo nano /etc/netplan/01-netcfg.yaml

	Add:
		# This file describes the network interfaces available on your system
		# For more information, see netplan(5).
		network:
		  version: 2
		  renderer: networkd
		  ethernets:
		    eth0:
		      addresses: [ 192.168.1.10/24 ] <----- Enter your IP
		      gateway4: 192.168.1.1
		      nameservers:
		          search: [ yourdomain.local ]
		          addresses:
		              - "8.8.8.8"  <----- Your DNS Servers
		              - "8.8.4.4"

$ sudo reboot

Reconnet using the new static IP address

5) Install Docker

Install Docker and prerequisites

$ sudo apt-get update

$ sudo apt-get install apt-transport-https ca-certificates curl software-properties-common

$ curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

$ sudo apt-key fingerprint 0EBFCD88

$ sudo add-apt-repository  \
"deb [arch=arm64] https://download.docker.com/linux/ubuntu \
$(lsb_release -cs) \
stable"

$ sudo apt-get update

$ sudo apt-get install docker-ce

$ sudo apt-cache madison docker-ce  <----- Potentially Optional (I did not do this)

$ sudo apt-get install docker-ce=18.06.3~ce~3-0~ubuntu  <----- Potentially Optional (I did not do this)

6) Install Home Assistant on Docker

Install Home Assistant and prerequisite libraries

$ sudo su

$ apt-get install jq avahi-daemon avahi-discover avahi-utils libnss-mdns mdns-scan

$ wget https://raw.githubusercontent.com/home-assistant/hassio-installer/master/hassio_install.sh

$ chmod +x ./hassio_install.sh

$ ./hassio_install.sh -m qemuarm-64

$ exit

7) Monitor installation (Optional)

$ watch -n 2 'sudo docker ps'

The installation is pretty quick and should be up and running in less than 5 mins.