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How do I update from my current Ubuntu 12.04.1 LTS to Ubuntu 12.04.2 LTS?


Release 12.04 (precise) 32-bit

Kernel Linux 3.2.0-38-generic-pae

GNOME 3.4.2

I boot to Ubuntu 12.04.1 using LVPM created by Wubi.

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You simply upgrade:

sudo apt-get update
sudo apt-get upgrade

If you are not familiar with the command line, just use the Update Manager to install updates.

Downloadable versions like 12.04.1 and 12.04.2 avoid a large update situations after a fresh install. Also this is useful for computers without or with a slow internet connection. The update manager is always your source for update information. I'm not sure about this, but I think it will even tell you if support for your LTS gets dropped and ask you to upgrade to a new LTS.

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Ran that in Terminal and got. :~$ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. – Haralld Feb 20 '13 at 17:33
That simply means that you have your system fully updated. As explained in the answer, the ".2" in 12.04.2 means that a lot of updates and upgrades have been put in the installation disc image, so you don't have to install everything that has been updated since Ubuntu 12.04 was first launched. If you ever used that other O.S., this is somewhat similar to buying the OS+"service pack" as opposed to installing it from your existing system (which would be your case). – carnendil Feb 20 '13 at 17:41
I ran Update Manager first thing and nothing came up. In Software Sources I have it set to "Notify me of a new Ubuntu version": For long-term support versions. When I have it set to "For any new version" it shows me New Ubuntu release '12.10' is available. – Haralld Feb 20 '13 at 17:45
You can upgrade to 12.10, but 12.10 is not a LTS. If you so desire, be sure to back up your data before you upgrade. – bodhi.zazen Feb 20 '13 at 17:52
As has been explained, you are already on "12.04.2", nothing more needs to be done. See also… – bodhi.zazen Feb 20 '13 at 17:56

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