I am stuck on version 9.10 Karmic Koala and need to update. I am not very good with computers so any simple and easy instructions would be awesome!
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If you are looking to update to at least 12.04 from 9.10 you are looking at 3 system updates, I really don't recommend doing this. What I do suggest is download yourself a copy of the latest ISO and make a bootable ISO. From there you will have to boot into the USB or DVD so you will need to go into your BIOS and enable USB booting or Change the boot device priority if it doesn't work right away.
If you need help making a bootable Ubuntu USB Drive.. here.
If you need help installing Ubuntu.. here
If you really must upgrade through the terminal then you need to follow these steps
1. vi /etc/apt/sources.list
2. Replace each maverick universe with precise universe
3. aptitude update
4. aptitude full-upgrade
But seriously this is probably going to break the installation but I really suggest making a bootable USB or DVD, it will be much faster and safer.
CMDann
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The latest version is 12.10 and there is no way to upgrade directly from 9.10 to 12.10. You would need to step through some versions in between.
First you would need to upgrade 9.10 to 10.04 as described here:
https://help.ubuntu.com/community/EOLUpgrades/Karmic
Then from 10.04 to 12.04 as described here:
https://help.ubuntu.com/community/PreciseUpgrades
Then from 12.04 to 12.10 as described here:
http://www.ubuntu.com/download/desktop/upgrade
Each upgrade would be around 800 MB on average, that's a total of around 2.5 GB (or more) of downloads. If you have the bandwidth for that kind of download and your installation has critical setup that you would want to retain, then above is the upgrade path.
Otherwise, the best (and simplest) option for you is to take backup of your files and documents stored in /home/username folder and any other folders you created, make a list of applications installed by you. Then do a fresh install of the new/latest version 12.10. Then install the other applications that you may have had earlier.
Before doing a fresh install, do check it on your computer with a Live CD/DVD, so you can ensure that your hardware is compatible.
Sri
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Ubuntu 9.10 (Koala) is no longer supported, and so upgrading from 9.10 to 10.04 LTS is also not supported.
This rules out upgrading (via multiple steps) to 12.04 or 12.10.
(adapted from: AskUbuntu > Upgrade 9.10 to 10.04 )
Once you have your data and settings backed-up, you should do a fresh install of Ubuntu 12.04 LTS on your PC. There will likely be initial issues with drivers, but this should mostly be resolved by doing an update.
Once you have 12.04 LTS working, then try out (but do not immediately install) Ubuntu 12.10 (or later 13.04). This may also work on your PC, but with older hardware you are better sticking with the LTS release.
I have successfully run 12.04 LTS on an HP Mini netbook (Atom processor, 1GB RAM) or ex-corporate desktops (P4 2.8GHz, 1GB RAM).
