Consequently, Armbian provides . The file you download is not technically an "ISO" (which typically refers to optical disc media). Instead, you download a compressed .img.xz file, which is a raw disk image.

If you take one thing away from this article, let it be this: Instead, search for the specific download page for your exact board model.

A powerful, menu-driven tool ( sudo armbian-config ) that automates complex tasks like hardware performance tuning, Wi-Fi setup, and installing specialized software like Docker or media servers.