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| Warning |
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Skipping versions is not advised as it may cause damage to your system. |
Determine Version
Before you start you should determine the kernel and release you are currently running. It is helpful to write this information down before starting your release upgrade. Here are the commands with sample data,
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| Info |
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A comprehensive and updated table of Ubuntu releases is on the Wikipedia. |
Prepare for the Upgrade
First backup your system and data. If you are happen to be using visualization take a snapshot. Whatever your backup method is, make sure the restore works.
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As a precaution we also stop even services managed by Ubuntu. Examples include web server deaemons (Apache, nginx, etc), database servers (PostgreSQL, MySQL, etc), and any other non-critical services.
Perform the Upgrade
It is preferable to upgrade from the console. Even in the case of cloud or virtual computing try to get to a console. Most cloud and virtual systems provide a back door console access via the web browser.
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After the upgrade it will request to restart the system.
Verify the Upgrade
Verify that the version you are running has changed,
| Code Block |
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uname -a Linux myra 2.6.32.9-rscloud #6 SMP Thu Mar 11 14:32:05 UTC 2010 x86_64 GNU/Linux lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 10.04.2 LTS Release: 10.04 Codename: lucid |
Change Release Upgrade Back to LTS
Provided you are happy with the version you are on, you may want to edit the etc/update-manager/release-upgrades and set Prompt=lts or whatever you were using before,
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