Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How do I upgrade to the unreleased version of Ubuntu for testing?

share|improve this question
In my opinion you should re-install if you want to use a beta. And it is a lot quicker than upgrading (plus you can still keep your old files). – Rinzwind Mar 20 '14 at 9:00
@datanela please, this question is a generic "how I can upgrade" don't use version specific tags for non-hardware related questions! – Braiam Mar 20 '14 at 23:24
From LTS to LTS it's always possible to upgrade, but only after there's a point release, I don't recommend you to upgrade to beta yet. – Braiam Mar 20 '14 at 23:25
@LuísdeSousa that is not what he's asking, he's asking if he can upgrade from a LTS to LTS. – Braiam Mar 20 '14 at 23:26
^^ this is the right way – Jorge Castro Mar 20 '14 at 23:27
up vote 51 down vote accepted

Press Alt + F2 and type update-manager -d. On the top of the window you will see an info of the new Ubuntu+1 "release".

enter image description here

However, upgrading to a development release is not recommended, as it is a unstable release.

See this question for tips when you have problems: There's an issue with an Alpha/Beta Release of Ubuntu, what should I do?

share|improve this answer
This won't work if you don't have the software-sources correctly configured. – Lucio Aug 9 '13 at 5:00

The truly command line way is (e.g. if you don't have a gui):

sudo do-release-upgrade -d

where -d means update to a development version

do-release-upgrade [options]


   Upgrade  the  operating system to the latest release from the command-line.
   This is the preferred command if the machine has no graphic environment
   or if the machine is to be upgraded over a remote connection.


   -h, --help
          show help message and exit

   -d, --devel-release
          Check if upgrading to the latest devel release is possible
share|improve this answer
This works for me (Kubuntu) while update-manager does not (not present). – sje397 May 2 '11 at 0:00
Checking for a new Ubuntu release Get:1 Upgrade tool signature [198 B] Get:2 Upgrade tool [1,148 kB] Fetched 1,148 kB in 6s (58.3 kB/s) authenticate 'trusty.tar.gz' against 'trusty.tar.gz.gpg' extracting 'trusty.tar.gz' Can not run the upgrade This usually is caused by a system where /tmp is mounted noexec. Please remount without noexec and run the upgrade again. – Adithya Chakilam May 3 '14 at 5:20
Editing /etc/update-manager/release-upgrades to prompt=normal will let you get non-LTS releases that should be more stable than the latest devel release. – syvex Feb 17 at 21:36

There are two ways to upgrade:

  • Upgrade using update-manager
  • Upgrade using alternate cd

However note it is not recommended to upgrade it to Ubuntu+1, since it is not stable.

Upgrade using update-manager:

Press Alt+F2 and then type update-manager -d. When update manager appears then click on upgrade.

alt text

Upgrade using alternate cd:

You can also upgrade using the alternate cd. After downloading the latest build then press Alt+F2 and enter gksu /cdrom/cdromupgrade.

Because it is a development release, you will almost certainly have problems. See: There's an issue with an Alpha Release of Ubuntu, what should I do?

share|improve this answer
THank you @dv3500ea for editing :) – karthick87 Jan 15 '11 at 14:48

From 11.04 onwards,when you boot the livecd and start installing it will give a option of upgrading to 11.04. it will automatically detect installed apps and install the updated version of your apps also.

live CD : Allocate drive space


share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.