How to make a quick shot before upgrade system?
Solution 1:
The safest way (I am familiar with) to have a backup installation, in case anything breaks, is to use something like Clonezilla to backup your installation.
It is very easy to use, you only need a suitable place for your backed up information.
Or you could try TimeShift. Or BackInTime.
There are quite a few posts out there with variants.
- Create bootable backup of my existing ubuntu installation
- https://superuser.com/questions/355212/how-can-i-backup-a-ubuntu-system-and-restore-it-on-another-maching-with-complete
- https://ubuntuforums.org/showthread.php?t=2244774 (old)