For our Long Term Support version (supported for 3 years), head over to here. This is recommended for most cases.
The links below are for the current release (supported for 9 months). If you need the most bleeding edge packages, in exchange for a potential decrease in stability, this would be a good choice.
The default "Desktop" installer requires 384-800 MB of RAM (depending on your selected options.) If you have any problems, or if you're comfortable using a keyboard interface, try the alternate installer to install on computers with less RAM or a hard disk smaller than 4.3 GB.
Check USB or CD Disc for Errors. When you boot the default installer, you will see the option to "Check Disc For Errors", otherwise, check for errors manually.
Please use the torrent link to download, it will be a faster download and will save on costs for bandwidth for the Canonical servers... which means more money in the budget for all of the Ubuntu flavours.
If you’re not sure about installing Lubuntu, you can try it out without affecting your current installed system.
Hint: With the default CD, you can boot your computer with Lubuntu to back-up your data!
32-bit version, suitable for almost all PCs.
64 bit version for Intel or AMD computers. Most PCs older than about 2007 are not 64-bit compatible, so you may need a 32-bit ISO instead of a 64-bit ISO.
As of version 14.04, PowerPC systems are only available for Long Term Support (LTS) versions.
PowerPC version. For Apple Macintosh G3, G4, and G5, including iBooks, PowerBooks and IBM OpenPower. To avoid unnecessary problems, please see the Ubuntu PowerPC FAQ and PowerPC Known Issues pages before installing.
Alternate ISOs are for low-RAM PCs. Computers with less than 400 MB of RAM are considered low-RAM computers. You can find more information about Alternative Install here.
The lowest system requirement of Lubuntu to run on a machine: Please head over to Minimal Install for further details.
Advanced Methods and Further Information
Further information for experienced users can be found here.
Previous releases are here.
As with all alphas and non-stable betas, they are not suitable for a production environment. If you'd like to help out, we always need more testers. For more details please see the section in our wiki for testing.