Is there a recommended image backup path to ensure I can restore my previous install if the new image fails?

I’m still on 14.04 and I’m using my laptop for things related to a production server. I need a way to have an absolutely rock solid backup plan before my upgrade to next LTS. I’m sure nobody wants to spend 8 hours sorting out dependencies, but before I pull the trigger, I need to know that I can easily roll the changes back.

How can I roll back to a previous image if I get weird errors after the upgrade?

Answer

Clone your system (root) partition to external media using Clonezilla.

Attribution
Source : Link , Question Author : RobotHumans , Answer Author : Organic Marble

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