Listing 1. Environment Variables and Their Defaults from theG4's Open Fireware
0 > printenv
------------ Partition: common --- Signature: 0x70 --
little-endian? false false
real-mode? false false
auto-boot? true true
diag-switch? false false
fcode-debug? false false
oem-banner? false false
oem-logo? false false
use-nvramrc? false false
use-generic? false false
default-mac-address? false false
real-base -1 -1
real-size -1 -1
load-base 0x800000 0x800000
virt-base -1 -1
virt-size -1 -1
pci-probe-mask -1 -1
screen-#columns 100 100
screen-#rows 40 40
selftest-#megs 0 0
boot-device /pci@f2000000/pci-bridge@d/mac-io@7/ata
boot-file
boot-screen
console-screen
diag-device enet enet
diag-file ,diags ,diags
input-device keyboard keyboard
output-device screen screen
input-device-1 scca scca
output-device-1 scca scca
mouse-device mouse mouse
oem-banner
oem-logo
nvramrc
boot-command mac-boot mac-boot
default-client-ip
default-server-ip
default-gateway-ip
default-subnet-mask
default-router-ip
boot-script
aapl,pci Use PRINT-AAPL,PCI to view
ASVP 30313037 31373030 32353935
ok