There are several methods of obtaining Ubuntu.
Downloading the Ubuntu ISO
Go to the Official Download Page
Select the Ubuntu Desktop version that you wish to install:
If you have a recent computer (>2010), or if you know that your computer is 64bit, you should select the 64bit version for better performance and UEFI compatibility.
Else, you can select the 32bit version.
Click the Get Ubuntu button to begin the download of the ISO file.
Obtaining from Other Suppliers
For a few pounds, you can buy a CD/DVD from Ubuntu
UbuntuDistributors can often ship Ubuntu CD-ROMS and DVDs faster than the Shipit service.
You can buy Ubuntu Pre-installed from a number of places.
Local Linux User Groups (LUG) may supply copies of Ubuntu at their meetings.
- Libraries often stock software on CD-ROM.
- Computer magazines may contain Ubuntu CD-ROMS and DVDs.
Ubuntu releases a new version every six months. The LTS abbreviation, meaning "Long-Term Support," designates that the version will be supported for 5 years on servers and the desktop. By contrast, other versions are supported for only 18 months. Neither is inherently more stable than the other; the LTS version merely is updated for a longer period than other versions and is therefore supported longer.
As the next Ubuntu release draws closer, preview versions of it will be released on CD. These development releases may be very unstable (especially in the early stages of the cycle). If you are interested in helping test the release (and reporting or fixing bugs), you might be interested in installing these releases. Most users, however, will NOT want to use a development version.
To download daily CD images using jigdo ("Jigsaw Download"), see the JigdoDownloadHowto.
If you are running Windows and would like to install Ubuntu within Microsoft Windows as you would install a Microsoft Windows-based program, you can install Ubuntu via Wubi (remark: this is less reliable than a standard installation).