Booting on SPARC Systems

Modern SPARC systems rely on a specification called OpenBoot, also known as the IEEE-1275 Standard for Boot Firmware. It defines a machine-independent Basic Input Output System (BIOS) that promotes the machine from its Power-On Self-Test (POST) diagnostics to a boot-ready state. Once the system chassis is powered, the POST inspects the system’s onboard components. If the key components (CPU, RAM, and other system controllers) are found in working order, the firmware establishes an initial machine state suitable for testing components individually, configuring the firmware environment, or booting a kernel program. From that state, the system can initiate a boot process automatically, if so configured, or present a console ...

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