Ubuntu is it possible to backup the system state?

Question

ubuntu

Greetings!
I want to roll one update, but it pulls a bunch of other package updates,
I want to restore all versions as they were in case of unforeseen problems without a full restoration of all data, well, sleep =)
A full backup is done just in case.
How should you prepare and what should you do?

Answer 1

There is btrfs, which allows you to make a snapshot of the current state of the file system at any time, and then return to this snapshot. Or remove it if not needed. itbuben.org/blog/unix-way/2986.html

Answer 2

First make an image.
Then restore.
dd if=fs.img.gz | gunzip - | dd of=/dev/sda1

Answer 3

Clonezilla is downloaded from the official site - a portable Linux-based operating system for creating and restoring just such things. Installed either on CD or flash drive. Disk images are created that can even be saved to network resources. Interface including Russian.

Answer 4

For such cases, I have a bootable flash drive with Acronis True Image / Disk director and an external screw for backups. A full copy of the partition is made and then do whatever you want there, if something goes wrong, you can always even format it, and then restore it with the same Acronis. If the partition is small, and the flash drive, on the contrary, then you can merge the same image onto the flash drive.