efibootmgr
Efibootmgr is a command-line utility for managing the UEFI boot entries on Linux systems. It allows users to view, create, modify, and delete boot options stored in the EFI firmware's non-volatile memory. This tool is essential for configuring dual-boot setups, troubleshooting boot issues, and managing boot order in UEFI-based computers.
Developers should learn efibootmgr when working with UEFI-based Linux systems, especially for system administration, DevOps, or embedded development tasks. It is crucial for managing boot configurations in dual-boot environments (e.g., Linux with Windows), fixing boot problems after kernel updates, or customizing boot sequences for servers and workstations. Use it to ensure reliable system startup and optimize boot performance.