Choosing Your Ubuntu Version

The developers behind Ubuntu have worked to make the software as easy and flexible to install as possible. They understand that people will be installing Ubuntu on computers with varying purposes (desktops, servers, laptops, and so on) and using different types of computers (PCs and Macs, 32-bit and 64-bit computers, and so on). To cater to as many people as possible, there are two Ubuntu CDs that can be used.

� Desktop: The desktop CD is the one recommended for desktops and laptops. With this CD, you can boot Ubuntu from the CD and, if you like it, you have the option to install it to your hard drive. Note that running from the disk without installing directly to the hard drive is the default option to help prevent accidental data loss.

� Alternate install: The alternate install CD is recommended for use in any scenario where the desktop version is unusable (e.g., not enough RAM) or for those with more advanced needs (e.g., automated deployments or special partitioning requirements). With this CD, you boot into an installer and then run Ubuntu when the installation is complete.

Ubuntu 10.04 officially supports two main computer types, or architectures, and a couple of additional variations:

� i386: This supports all Intel or compatible processors except those that require AMD64. This includes the new Apple hardware. If you are not certain which you need, use this one. It will work on either 32-bit or 64-bit systems, so it is the default choice.

� AMD64: If you know you are using a processor based on the AMD64 or EM64T architecture (e.g., Athlon64, Opteron, EM64T Xeon, or Core2), you should choose this version because it will be a bit more efficient on your hardware.

� ARM: ARM is a low-powered chip commonly found in cell phones and similar mobile devices. ARM Inc., the makers of ARM, and Canonical have an agreement to build the entire Ubuntu archive on ARM, which makes Ubuntu the first major distribution to support ARM as a standard rather than custom device�specific distribution, such as OpenWRT is for routers. For a list of the current ARM chip version being supported, please see www.ubuntu.com/products/whatisubuntu/arm.

Source of Information : Prentice Hall The official Ubuntu Book 5th Edition 2010