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Install Ubuntu on an External USB Drive (Portable Ubuntu)

This guide explains how to install a full Ubuntu system on an external USB drive or SSD, so you can plug it into any compatible computer and boot into your own Ubuntu desktop, with full persistence and saved settings.

Key idea

The main challenge on UEFI systems is bootloader isolation: by default the installer may mess with the host system’s ESP (EFI System Partition). The trick is to temporarily hide the host’s ESP from the installer so it instead creates its own ESP directly on the USB.

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1. Install Miniconda

mkdir -p ~/miniconda3
wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh -O ~/miniconda3/miniconda.sh
bash ~/miniconda3/miniconda.sh -b -u -p ~/miniconda3
rm -rf ~/miniconda3/miniconda.sh
~/miniconda3/bin/conda init bash

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byobu-enable
byobu-select-backend tmux
byobu-enable-prompt
. ~/.bashrc

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import PySpin


NUM_IMAGES = 5

class GainNodeCallback(PySpin.NodeCallback):

    def __init__(self):
        super(GainNodeCallback, self).__init__()

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Keybinding definition

byobu keybindings can be user defined in /usr/share/byobu/keybindings/ (or within .screenrc if byobu-export was used).

Window/layout shortcuts

Key Combination	Action
F2	Create a new window
F3	Move to previous window
F4	Move to next window

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KEYBINDINGS
       byobu keybindings can be user defined in /usr/share/byobu/keybindings/ (or within .screenrc if byobu-export was used). The  common  key  bindings
       are:

       F2 - Create a new window

       F3 - Move to previous window

       F4 - Move to next window

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#!/usr/bin/env python

import rospy
import cv2
from cv_bridge import CvBridge
from sensor_msgs.msg import Image, CompressedImage

def image_publisher():
    rospy.init_node('local_image', anonymous=True)
    

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Tmate

https://tmate.io/

Setup steps

1. Install tmate on the host machine
2. Request an API key
3. Follow instructions on the website to add API key information to .tmate.conf - Be sure to use a difficult session name as it is basically a plaintext password.
4. Setup system service if the tmate session is to be started automatically as system starts

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import olefile
from zipfile import ZipFile
from glob import glob

# How many PDF documents have we saved
pdf_count = 0

# Loop through all the .docx files in the current folder
for filename in glob("*.docx"):
  try:

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#!/bin/bash

net_interf=enp0s5
vm_ip=192.168.7.172
gateway_ip=192.168.7.1

sudo ip address add ${vm_ip} dev ${net_interf}
sudo ip route add ${gateway_ip} dev ${net_interf}
sudo ip route add default via ${gateway_ip} dev ${net_interf}