UUUnicorn wrote:Would I do this in "Software Sources"?
No, from the command line.
I did this on some of my systems without problems and works in fresh Mint 12 LXDE installs but could give problems with your install so it's a good idea to backup the system with Clonezilla before the upgrade.
- Reboot the computer, don't login to X, login to the console.
- Remove the mint-search-addon with "sudo apt-get purge mint-search-addon" because it fails to upgrade properly (mint-meta-core is also removed).
- Point the /etc/apt/sources.list file to the Mint 13 repos, replace "lisa" with "maya" and "oneiric" with "precise". To do that use nano (or other editor), run "sudo nano /etc/apt/sources.list".
- The LXDE specific repo can be left as is or just comment it out with "#" to avoid error messages when the repo closes.
- Update the system with "sudo apt-get update" and upgrade the system with "sudo apt-get upgrade". You will need about 1GB of free disk space for this for the base system, more if you have more installed programs.
- After this step run "sudo apt-get clean" to reclaim some disk space.
- Run "sudo apt-get dist-upgrade" for the final upgrade, reinstall mint-meta-core with "sudo apt-get install mint-meta-core. Reboot.
- Use "sudo apt-get clean" to reclaim some more disk space. You may change the wallpaper to the maya wallpaper that is already installed in the maya wallpaper directory.
Your system is now upgraded but is not Mint 13 LXDE and could be improved but should work ok.