How Linux Belongs to Everything: Key Takeaways from Greg Kroah-Hartman Interview
Linux is the world's most widely used operating system, powering billions of Android devices, cloud servers, smart TVs, 5G modems, financial markets, and even the International Space Station . In a detailed co nversation on How Linux is built with Greg Kroah-Hartman —a Linux kernel maintainer for over 13 years and a Linux Foundation fellow—shared technical and organizational insights into how Linux is built . 1. Codebase Scale: Why Your Phone Code is 3x Larger Than a Server The Linux kernel repository contains nearly 40 million lines of code, though the core kernel accounts for only about 5% of that total. The remaining 95% consists of hardware support, architecture code, and device drivers. Surprisingly, a standard enterprise server requires only about 1.5 million lines of code because server hardware (CPU, network interface, storage) is relatively straightforward. In contrast, a modern smartphone runs approximately 4 million lines of code—nearly three times as much—due to compl...
