Ubuntu – 8 GB RAM on 64 bit processor using 32 bit Ubuntu


I'm going to repeat the title in a longer word. Can a 32 bit Ubuntu address more than 4 gb of RAM on a 64 bit processor?

Best Answer

You need to use the PAE Linux kernel. The installer should be able to select the PAE kernel for you. Make sure that when you install, there is Internet connectivity, so that you get the PAE kernel from the start. If in doubt, you can install using the DVD ISO of Ubuntu (which definitely has the PAE kernel). For more on PAE, see Enabling PAE.