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If successful, prtconf returns 0. If an error occurs, prtconf prints an error message and returns 1. For example, when an illegal option is specified, prtconf returns 1. On a SPARC system, when the -F option is specified and the console output device is not a framebuffer, prtconf returns 1.
Running prtconf on a Sun4/65 series machine produces the following sample output:
example% prtconf System Configuration: Sun Microsystems sun4c Memory size: 16 Megabytes System Peripherals (Software Nodes): Sun 4_65 options, instance #0 zs, instance #0 zs, instance #1 fd (driver not attached) audio (driver not attached) sbus, instance #0 dma, instance #0 esp, instance #0 sd (driver not attached) st (driver not attached) sd, instance #0 sd, instance #1 (driver not attached) sd, instance #2 (driver not attached) sd, instance #3 sd, instance #4 (driver not attached) sd, instance #5 (driver not attached) sd, instance #6 (driver not attached) le, instance #0 cgsix (driver not attached) auxiliary-io (driver not attached) interrupt-enable (driver not attached) memory-error (driver not attached) counter-timer (driver not attached) eeprom (driver not attached) pseudo, instance #0
example% prtconf System Configuration: Sun Microsystems i86pc Memory size: 32 Megabytes System Peripherals (Software Nodes): i86pc eisa, instance #0 kd, instance #0 ata, instance #0 cmdk, instance #0 aha, instance #0 cmdk, instance #1 (driver not attached) cmdk, instance #2 (driver not attached) cmdk, instance #3 (driver not attached) cmdk, instance #4 (driver not attached) cmdk, instance #5 (driver not attached) cmdk, instance #6 (driver not attached) cmdk, instance #7 chanmux, instance #0 asy, instance #0 asy, instance #1 elx, instance #0 elx, instance #1 (driver not attached) elx, instance #2 (driver not attached) elx, instance #3 (driver not attached) fdc, instance #0 fd, instance #0 fd, instance #1 options, instance #0 objmgr, instance #0 pseudo, instance #0 example%
The output of the prtconf command is highly dependent on the version of the PROM installed in the system. The output will be affected in potentially all circumstances.
The driver not attached message means that no driver is currently attached to that instance of the device. In general, drivers are loaded and installed (and attached to hardware instances) on demand, and when needed, and may be uninstalled and unloaded when the device is not in use.