======================================================================
Raspberrypi install
Changed password on ME4870 OS from 123 to 325345745 (6=8 chars allowed)
======================================================================
If you plug your Raspberry Pi directly to a wired network, you should be able to access it by its name (raspberrypi or raspberrypi.local) without changing any other files.

I ran sudo piwiz and it set things up correctly and I got an IP address
login: pi
passwd: 325345745
IP address: 192.168.86.228
but the name server is broken
I got the UIUC NS URL from the command
dig ns illinois.edu 
37.58.107.93
I added this to RPi /etc/resolv.conf 
namesserver 37.58.107.93
and that worked!

Now I cannot login to pi@37.58.107.93 because there is no port 22 open
nmap 37.58.107.93
returns no open ports.

trying to upload bullseye InRelease is not yet available

~/Admin/BeginnersGuide-4thEd-Eng_v2.pdf  <How to use
Wizard: "sudo piwiz"
 This worked with the headless micro usp chip.
Config: sudo raspi-config  (Allows setting of the wireless LAN SSID and passphrase.)

Headless as used by Philip:
https://www.tomshardware.com/reviews/raspberry-pi-headless-setup-how-to,6028.html
/usr/bin/rpi-imager   <--- imager already installed
6. Run rpi-imager (sudo?)

7. Write an empty text file named "ssh" (no file extension) to the root of the directory of the card.
When it sees the "ssh" on its first boot-up, Raspberry Pi OS will automatically enable
SSH (Secure Socket Shell), which will allow you to remotely access the Pi command line from your PC.

In /root create a file ssh with the followin content:
country=US
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
scan_ssid=1
ssid="1404 sar wifi"
psk="graciedog"
}

------------------------------------------------------------------
then folliw inst in Phillip's email:
Here is the link to the guide I was following to install headless mode
  https://www.tomshardware.com/reviews/raspberry-pi-headless-setup-how-to,6028.html
I installed the OS on SD card and created a file called SSH.
All you need to do now is set up the SSID and passcode in the file,
and then connect a network adapted.
Then you will be able to access it via shh using either raspberrypi or raspberrypi.local
MORE:
The article also goes over how to use VNC viewer to access the display and use your
laptop keyboard/mouse outputs instead of having to connect a monitor.
 This solution should be ideal.
------------------------------------------------------------------

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https://askubuntu.com/questions/430008/how-to-install-neovim-on-ubuntu
7 years old (about the time "external editor" stopped working
======================================================================
How to run remmina: run as jba, and it starts up fine.
dont forget to start the cisco anyconnect before trying to connect to the university
Type in the IP address once it starts. The default is RDP but other options are available
It worked perfectly the first time

How to install remmina under ubuntu 20.04
 apt-add-repository ppa:remmina-ppa-team/remmina-next
 sudo apt update
 sudo apt install remmina remmina-plugin-rdp remmina-plugin-secret

======================================================================
Not sure if I need tigervncserver with remmina remote desktop
======================================================================
Howto setup and use tigervncserver:
https://www.youtube.com/watch?v=zNRmP8ngq4A
man tigervncserver - start or stop a TigerVNC server
https://www.youtube.com/watch?v=w1HS_xVnFFo  (Headless RPi)
Q: Is this diffeent from vncserver? What exactly is the difference?

Use xtigervncviewer -SecurityTypes VncAuth -passwd /home/jba/.vnc/passwd :2 to connect to the VNC server
cd .vnc/
base) jba@xear:~/.vnc$ ls
config.d          passwd         vncviewer.log.bak  xear:2.pid  xear:3.pid
default.tigervnc  vncviewer.log  xear:2.log         xear:3.log  xstartup

Instlled tigervnc on Jan2. 2022. This includes:
sudo apt install tigervnc-* 
tigervncconfig  tigervncpasswd  tigervncserver  
tigervnc-common             tigervnc-standalone-server  tigervnc-xorg-extension
tigervnc-scraping-server    tigervnc-viewer      


======================================================================
https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#3-wifi-or-ethernet
======================================================================
The install was not very clear, but I figured it out eventually.
Run the installer: rpi-imager (or raspi-config)
Download the deb package
2) run the deb package
3) run the command rpi-imager which will burn the OS (20.04 64bit) to the SD card (Generic-SD)
4) Once this is done, remove the SD card and try to boot the Raspberry-pi#3
  sudo raspi-config
   This allows the config of the raspberry-pi options, some of which are important like the time zone
and keyboard. I also updated the tool (Oct 25, 2021).
5) How to ssh into RPi
https://itsfoss.com/ssh-into-raspberry/
To ssh to RPi we need the IP address. That can be a problem to determine
 Perhaps plug something into the Network port. But I dont have something to plug in.
I logged into "kitchen" and plugged RPi into the ether port and used ifconfig
 IP: 192.168.86.190

Note: Make sure your Raspberry Pi and the computer you are using to SSH into your Raspberry Pi are connected to the same network.

SSH into RPi and open a terminal
  ssh pi@192.168.x.x

Default Username and Password is:

    username: pi
    password: raspberry
Change the password to avoid hacking.

The command raspi-config is missing:
  To install raspi-config 
   https://linuxtut.com/en/a252676a3ce6bd1410da/

  raspi-config installation procedure

  I referred to @ ivvakanni's Post
	 "The story of installing raspi-config on ubuntu 18.04 and changing the initial setting of GPIO"
  sudo echo "deb http://archive.raspberrypi.org/debian/ buster main" >> /etc/apt/sources.list
  sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7FA3303E
  sudo apt-get update
  sudo apt-get install raspi-config
  sudo mount /dev/mmcblk0p1 /boot

The point is to change jessie (debian 8.0) to buster (debian 10.0).
  If you leave jessie as it is, an error will occur.

 In Ubuntu 20.04 LTS, / etc/debian_version is bullseye/sid, so it seems to be based on bullseye (debian 11.0). Since http://archive.raspberrypi.org/ does not have bullseye, I chose buster.
 There seems to be no problem so far.


	
Installer on xear: sudo raspi-config (this is a "nurses" version of rpi-imager)
https://raspberrytips.com/find-current-ip-raspberry-pi/
https://www.raspberrypi.com/software/operating-systems/

RaspberryPi-Setup.pdf   <-- UIUC info for everything you need to know to set it up.

IP= 192.168.86.190,192,194 <-- not sure what IP this is for (home RPi2?)
general useful info:
gnome:
https://forums.raspberrypi.com/viewtopic.php?t=276512

Getting into uiuc.edu wifi 
Check out section 3.1.2 Configure WiFi at
 https://courses.engr.illinois.edu/cs424/fa2016/mp/init.pdf
 the "good stuff" is on page 6.

======================================================================
https://ubuntu.com/tutorials/how-to-install-ubuntu-on-your-raspberry-pi#3-wifi-or-ethernet
======================================================================
The install was not very clear, but I figured it out eventually.
Run the installer: rpi-imager (or raspi-config)
Download the deb package
2) run the deb package
3) run the command rpi-imager which will burn the OS (20.04 64bit) to the SD card (Generic-SD)
4) Once this is done, remove the SD card and try to boot the Raspberry-pi#3
  sudo raspi-config
   This allows the config of the raspberry-pi options, some of which are important like the time zone
and keyboard. I also updated the tool (Oct 25, 2021).
5) How to ssh into RPi
https://itsfoss.com/ssh-into-raspberry/
To ssh to RPi we need the IP address. That can be a problem to determine
 Perhaps plug something into the Network port. But I dont have something to plug in.
I logged into "kitchen" and plugged RPi into the ether port and used ifconfig
 IP: 192.168.86.190

Note: Make sure your Raspberry Pi and the computer you are using to SSH into your Raspberry Pi are connected to the same network.

SSH into RPi and open a terminal
  ssh pi@192.168.x.x

Default Username and Password is:

    username: pi
    password: raspberry
Change the password to avoid hacking.

The command raspi-config is missing:
  To install raspi-config 
   https://linuxtut.com/en/a252676a3ce6bd1410da/

  raspi-config installation procedure

  I referred to @ ivvakanni's Post
	 "The story of installing raspi-config on ubuntu 18.04 and changing the initial setting of GPIO"
  sudo echo "deb http://archive.raspberrypi.org/debian/ buster main" >> /etc/apt/sources.list
  sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7FA3303E
  sudo apt-get update
  sudo apt-get install raspi-config
  sudo mount /dev/mmcblk0p1 /boot

The point is to change jessie (debian 8.0) to buster (debian 10.0).
  If you leave jessie as it is, an error will occur.

 In Ubuntu 20.04 LTS, / etc/debian_version is bullseye/sid, so it seems to be based on bullseye (debian 11.0). Since http://archive.raspberrypi.org/ does not have bullseye, I chose buster.
 There seems to be no problem so far.