Boot Firmware
- is (low-level software) that starts when you boot your PC before booting your operating system
- the firmware itself and its settings are stored in the Boot Chip
Boot Firmware - Functions
the primary function of boot firmware is to initialize the hardware and then to “boot” (load and execute) the primary operating system.
the secondary functions include:
- Power-On Self-Test (POST) - testing the hardware
- managing hardware configuration information
- providing tools for debugging in case of faulty hardware or software
Boot Firmware - Types
Link to originalrefer to: Boot Firmware
- is a firmware boot method
- is a firmware boot method
- is a firmware boot order
- is an open standard independent of any programming language
- is a version 2 variant of Extensible Firmware Interface (EFI)
- encapsulates GRand Unified Bootloader (GRUB 2)
- when a computer is booted, UEFI loads files stored on the EFI System Partition (ESP) to start installing operating systems and various utilities
- UEFI was a direct replacement for BIOS, and whilst UEFI has been standard for over a decade, it’s commonly referred to as BIOS
- is a boot firmware platform that delivers a lightning-fast and secured boot experience on modern computers and embedded systems
- it is an alternative to UEFI and legacy BIOS boot firmware
- is an open-source alternative to proprietary UEFI firmware
- is an open-source implementation of an x86 BIOS, serving as a freely available firmware for x86 systems
- it supports standard BIOS features and calling interfaces that are implemented by a typical proprietary x86 BIOS