Definition: BSD (Borrowed Software) Bootloader - A bootloader that's been downloaded from an Internet source to a device, allowing it to be recompiled automatically. It performs a series of boot operations before the system itself starts running. The term 'bsdboot' refers specifically to a version of the Linux kernel available for free and pre-installed on many devices. BSD stands for "Build-Only System" (since only software is compiled into the kernel), which means that it's not part of the operating system itself but rather a standalone utility installed in the device.