The SPARC Boot Process

The boot PROM stores firmware that is responsible for booting the operating system. The SPARC boot process consists of the following phases:

  • Boot PROM: The Boot PROM phase displays system information and then runs the POST diagnostics. After the completion of the diagnostics, the primary boot program, bootblk, is loaded. Its function is to locate the secondary boot program, ufsboot, on the boot device.

  • Boot Programs: In this phase, bootblk loads the ufsboot program into memory and executes it.

  • Kernel Initialization: In this phase, the ufsboot program loads the core kernel into memory and causes it to execute. The kernel initializes its data structures and begins loading other kernel modules on the basis of the /etc/system ...

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