How to slightly change the live-usb with Ubuntu, updating the image to suit your needs?

Question

linux

Install the necessary software, configure - and then deploy from this image / print? And then tired of spending several hours every time on the same thing.
The flash drive was made by some standard Ubuntu utility.

Answer 1

There are two ways to perform mass installations - cloning and automated installation.
Automating the installation of Debian and Ubuntu is done using Preseed:
Debian Installer Preseed
Automating the installation using preseed
Preseed allows you to pre-set answers to the installer's questions, and run additional commands during the installation process. If necessary, you can add all the necessary packages to the disk image, and make the installation completely standalone (without the need for a network connection).
Cloning is faster - a fully installed and configured system is simply copied with dd to new media, but has its drawbacks. Some packages must be configured uniquely during the installation process and do not need to be identical on different computers. For example, random-seed, base-passwd, and udev persistent-net. You can write a script that will replace the configuration files after cloning, but for regular Ubuntu this will be a crutch anyway (although there are special images for cloud systems that are originally designed for this).
Both methods require quite a lot of time to prepare the image (because you have to perform many install-verify-fix iterations), and are justified only if you need to make a significant number of installations. For Ubuntu Desktop and Ubuntu Server it is better to use Preseed.