Unzipping Your Linux Distribution
When you download your Linux distribution, it will most likely be contained in a Zip file, which means it has been compressed so it is as small as possible. That saves you time downloading, but if you use Windows or Linux, the first thing you’ll need to do with it is uncompress it, or unzip it. If you double-click the Zip file, it should show you the Linux distribution file and give you a button to click to extract (or unzip) it.
Some distributions will have more than one file inside the Zip file. In that case, the one you need is the one that has .img at the end. It doesn’t matter if you decompress any others, but the one you need to work with is the .img file.
If you use a Mac, you don’t have to unzip the file before you flash the SD card as long as you follow the instructions later in this chapter (see “Flashing an SD card on a Mac”).