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I would like to know how to upgrade from my current version of Ubuntu to the next stable from the Command line interface?

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marked as duplicate by Amith KK, Mitch, Bruno Pereira Feb 18 '14 at 8:48

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
The other answers doesn't address this question. – Braiam Feb 18 '14 at 15:58
    
Well, they do, but command line is only mentioned as "Run do-release-upgrade in a terminal", as it's that simple, after general steps ("take backups"). – Olli Feb 18 '14 at 16:50
up vote 49 down vote accepted

You'll first need to make sure update-manager-core is present (it may already be installed):

sudo apt-get install update-manager-core

Next, run:

sudo do-release-upgrade

You may need to check /etc/update-manager/release-upgrades and change the line:

Prompt=lts

to:

Prompt=normal

for the release to show up.

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If you run the command sudo do-release-upgrade -d through SSH then use a GNU Screen, because the upgrade process will turn off SSH -> close the default port and open a new one (it will inform you of this new port), so:

$ ssh USER@HOST

$ screen -S upgrade
$ sudo do-release-upgrade -d

open a new terminal on client computer:

$ ssh -p PORT USER@HOST

$ screen -d
$ screen -r upgrade
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sudo do-release-upgrade -d is for devel release If you want to do LTS to the next one just use: sudo do-release-upgrade without the "-d" switch – user228759 Feb 17 '14 at 4:27

You can do

sudo do-release-upgrade

for command line updating

(This is actually the same as for Ubuntu Server)

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