It is easy to upgrade from Ubuntu 9.04 to Ubuntu 9.10.
- Start the Update Manager: Press Alt+F2 and type “update-manager” without quote.
- If your computer is not up-to-date, hit the Install Updates button to update all of the outdated packages.
- After the packages update is done, hit the Check button, this will cause Ubuntu to check for updates again.
- Ubuntu 9.10 distribution release will appear => click on the Upgrade button to begin.
- Follow the screen…
- Once the upgrade is complete and it asks to remove obsolete packages, click on Remove.
- To complete the upgrade, click on the Restart button. You should now be on Ubuntu 9.10. To verify, start the Terminal and type:
sudo lsb_release -a
Upgrade from a CD or iso file:
If you would like to perform the upgrade for a computer that does not have access to the Internet, you would need to download the Alternate ISO copy, not the normal download copy found on ubuntu.com.
You can obtain the Alternate ISO version from here: http://mirrors.kernel.org/ubuntu-releases/9.10/
- Boot up your Ubuntu
- Once your computer is ready, insert the CD
- A dialog will be displayed => click on Run upgrade to begin
Besides burning Ubuntu to a CD, you can also perform the upgrade directly from the .iso file. Here is the command to mount the .iso file:
sudo mount -o loop ~/Desktop/ubuntu-9.10-alternate-i386.iso /media/cdrom0
Now start the upgrade process:
gksu “sh /cdrom/cdromupgrade”