Turtlebot3 Raspberry Pi Setup 20210113

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References

Prepare micoSD Card

 $ cd TB3Install

 TB3Install$ mv ~/Downloads/ubuntu-18.04.3-preinstalled-server-arm64+raspi3.img.xz .

 TB3Install$ unxz < ubuntu-18.04.3-preinstalled-server-arm64+raspi3.img.xz > ubuntu-18.04.3-preinstalled-server-arm64+raspi3.img
  • Run the Disks application
    • To find it go to the "Show Applications" icon in the bottom left corner of the desktop.
    • Search for "Disks"
  • In the upper right corner of the Disks app window is a "hamburger" menu (3 horizontal lines).
  • Select the "Restore Disk Image" menu item
  • Do what makes sense

Useful References

 If for some reason the tar solutions don’t work (perhaps because you’re using the OS X built-ins), try this: 
   unxz < file.tar.xz > file.tar

 which is equivalent to:
   xz -dc < file.tar.xz > file.tar

 Then use tar to untar the file.

Boot Up the Raspberry Pi

  • Section 3.2.2

Configure the Raspberry Pi

  • Section 3.2.3
  • I believe this is what I did but I couldn't capture my keystrokes

Log into the Pi

  • username: ubuntu
  • passwd: ubuntu which I changed

Disable Automatic update 

 $ sudo nano /etc/apt/apt.conf.d/20auto-upgrades

Change the update settings 

 APT::Periodic::Update-Package-Lists "0";
 APT::Periodic::Unattended-Upgrade "0";

Configure wifi (I had trouble with the syntax and indention so it took a few tries0 

 $ sudo nano /etc/netplan/50-cloud-init.yaml

$ cat /etc/netplan/50-cloud-init.yaml
# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
network:
    version: 2
    ethernets:
        eth0:
            dhcp4: true
            match:
                macaddress: b8:27:eb:0b:5d:ce
            set-name: eth0
network:
  version: 2
  renderer: networkd
  ethernets:
    eth0:
      dhcp4: yes
      dhcp6: yes
      optional: true
  wifis:
    wlan0:
      dhcp4: yes
      dhcp6: yes
      access-points:
        "xxx":
          password: "xxx"

Apply configuration 

 $ sudo netplan apply
 $ reboot

Prevent boot-up if no network setup 

 $ systemctl mask systemd-networkd-wait-online.service
        unit sleep.target does not exist, proceeding anyway

Disable Suspend and Hibernate

TBD Did I do this

Enable SSH 

 $ sudo apt install ssh

 $ sudo systemctl enable --now ssh

 $ reboot

Notes and Logs

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