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→Part 2 - Install Ubuntu 12.04 LTS
=== IMPORTANT NOTE ABOUT STEP 4 ===
In Step 4 you may have differing options depending on where you are installing Ubuntu (primary hard drive, second/external hard drive, whether or not there are existing OSes on your target hard drive, etc.) It is VERY important that you choose the correct device and/or partition for installation. As such, when the option presents itself in the drive/partition selection stage of the installation, I '''very strongly recommend''' you use the advanced partitioning tool instead of the graphical partitioning tool. Usage of the visual tool can and has resulted in <u>disastrous consequences</u> in a dual-boot environment (the author and others have had their Windows 7 MBR overwritten by Ubuntu when using the visual tool - this is a known documented problem with Ubuntu).
See [http://news.softpedia.com/news/Installing-Ubuntu-12-04-LTS-266201.shtml this guide] on how to properly set up your partitions using the advanced tool (skip to/search for 4. Something else (advanced) in that page). The guide suggests a size of 2048MB for the swap partition - I went up to 8000MB with no problem, so you don't have to follow the numbers exactly. The guide also creates a /home partition for easier reinstalling - you can skip the /home partition and just have a / partition. Your choice. In the "Device for boot loader installation" drop down menu, MAKE SURE you've selected the correct hard drive. Once you've configured your partitions correctly, proceed with the installation. Reboot your computer when prompted to.