The OpenBoot Command reference at docs.sun.com provides detailed information. Here's a small list of handy commands:
help Display command line help banner Display power-on banner module-info Display CPU speed (OpenBoot 2.x) .speed Display CPU and bus speeds (OpenBoot 3.x) .version Display version of the Boot PROM .enet-addr Display ethernet address watch-net Monitor network connection test-net Test the onboard network interface devalias Display all current device aliases probe-scsi Identify the devices attached to the onboard SCSI bus probe-scsi-all Identify the devices attached to all SCSI busses show-disks Display device paths of installed SCSI disks show-displays Display device paths of installed display devices show-sbus Display a list of probed SBus devices
Examples for commands such as boot and setenv
can be found throughout this FAQ.
At the boot prompt (ok) you can type the command boot, followed by the device that you want to boot from. Examples:
ok boot floppy Boot from the floppy disk ok boot fd(0,0,0) Boot from the floppy disk ok boot cdrom Boot from the CD-ROM ok boot sd(0,6,2) Boot from the CD-ROM ok boot tape Boot from the tape device ok boot sd(0,4,0) Boot from the tape device ok boot disk Boot from the hard drive ok boot disk2 Boot from the hard drive with SCSI ID: 2 ok boot sd(0,2,0) Boot from the hard drive with SCSI ID: 2 ok boot sd(0,1,3) Boot from the 4th partition of SCSI ID: 1
Some older proms do not understand some of the "short" device aliases (i.e. cdrom), and you will need to use the longer explicit form.
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