I need help with starting out

So I only use amd so our house is full of amd based systems but I do have my Chromebook flex Lenovo ThinkPad r61 with a core 2 duo t 8100 2 GB of ram that I can get up to 4 I need some general help like do I use .dmg or .iso or how do I make it bootable I need help for pretty much everything if someone wants to help me out I would be pretty grateful

submitted by /u/Fluid_memes
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