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I installed Ubuntu 3 years ago and an upgrade attempt failed. The disk was configured dual-boot with Ubuntu + Windows.

I tried to install an ISO file for Ubuntu 16.

How can upgrade my previous Ubuntu installation to Ubuntu 16 without losing the dual-boot or Windows!?

David Foerster
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eainet
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2 Answers2

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What version of Ubuntu do you currently have installed?

You can install Ubuntu on the same partitions were the old version of Ubuntu is the process is the same as any other installation

When you run the live session of Ubuntu and begin your installation choose Something else, them choose the same partition were the old Ubuntu is installed and begin the installation

Don't not touch any of the Windows partitions and you should be good to go

Rob Goss
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As I understand it, upgrades from 14->16 are prone to serious failure (unusable). I would make a disk backup with Clonezilla before doing anything and ensure that any mistake is recoverable. This will invoke Murphy's law and can increase your chances of success.

Install your favorite Linux distribution (Ubuntu) on the old partition as described by Rob Goss below. Be sure to let us know if you are successful and the steps you followed.

gatorback
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