How to take a complete image of a Debian 9 system?

Question

linux

All the good time of the day. Tell me how you can take a complete image of the Debian 9 system with everything for the subsequent installation of an already configured system. Preferably in an *iso image. Yes, and all this must be done via the Internet. But in extreme cases, locally.

Answer 1

First of all, you shouldn't do it. The banal reason is different iron and there will be problems with this.
Secondly, the correct way:
1) Conditionally there is a system that needs to be propagated, install, install the necessary software, configure it.
2) Remove the list of required software. Write a small script that will do apt install soft1,soft2,... and so on down the list.
3) Software settings will be primarily in etc and in ~ (user's home directory). Pack these configs. (everything in a row is unnecessary, take only what you need, including you should not drag configs such as network settings, etc.)
4) Now install debian on the desired machine, execute what you got from p2, unpack and replace configs from p3.
Be attentive to "iron" configs, ie. all sorts of fstab \ mtab where something iron-dependent appears.

Answer 2

dd
https://habr.com/ru/post/117050/

Answer 3

Veeam® Agent for Linux
https://www.veeam.com/en/linux-backup-free.html

Answer 4

clonezilla can.
https://www.clonezilla.org/downloads.php
You can run from bootable media, you can install from reps, but then you have to install utilities, because clonezilla is essentially a shell for running them.

Answer 5

why all?
copy only the hamster (home
everything else is put in five minutes