When I switch systems, I like to take my operating system with me and expect it to boot on the new machine. There are many ways to maintain a system and I usually prefer some investigative debugging rather than wiping and hoping for the best.įor this reason, systems like my work laptop might have started their life a long time ago (Fedora 22 on an i7-based 4th generation laptop) and have by now seen three hardware refreshes, several solid state drive (SSD) upgrades, and many Fedora updates (I currently use Fedora 32). I just don't subscribe to this point of view. Some people, often using other platforms, prefer a good once-a-year wipe and reinstall to regain the original speed of their systems. I find it a complete waste of my time for something that should just update in place. Unified Extensible Firmware Interface (UEFI) is a successor to the legacy PC BIOS, aiming to address its technical limitations.I don't know about you but I don't like to reinstall my operating system. The last version of Microsoft Windows running on PCs which uses BIOS firmware is Windows 10. Furthermore, a BIOS upgrade that fails could brick the motherboard.

This allows easy, end-user updates to the BIOS firmware so new features can be added or bugs can be fixed, but it also creates a possibility for the computer to become infected with BIOS rootkits. In later computer systems, the BIOS contents are stored on flash memory so it can be rewritten without removing the chip from the motherboard. Originally, BIOS firmware was stored in a ROM chip on the PC motherboard. Most BIOS implementations are specifically designed to work with a particular computer or motherboard model, by interfacing with various devices especially system chipset. More recent operating systems do not use the BIOS interrupt calls after startup. In the era of DOS, the BIOS provided BIOS interrupt calls for the keyboard, display, storage, and other input/output (I/O) devices that standardized an interface to application programs and the operating system.

The BIOS in modern PCs initializes and tests the system hardware components ( Power-on self-test), and loads a boot loader from a mass storage device which then initializes a kernel. Firmware for hardware initialization and OS runtime servicesĪ pair of AMD BIOS chips for a Dell 310 computer from the 1980s

Ami rom file doesnt exist