Open Firmware, 2.0.2
To continue booting the MacOS type:
BYE<return>
To continue booting from the default boot device type:
BOOT<return>
 ok
0 > printenv 

little-endian?      false               false
real-mode?          false               false
auto-boot?          false               true
diag-switch?        false               false
fcode-debug?        false               false
oem-banner?         false               false
oem-logo?           false               false
use-nvramrc?        false               false
real-base           F00000              -1 
real-size           100000              100000 
virt-base           -1                  -1 
virt-size           100000              100000 
load-base           4000                4000 
pci-probe-list      -1                  -1 
screen-#columns     64                  64 
screen-#rows        28                  28 
selftest-#megs      0                   0 
boot-device         ata/ata-disk@0:0    /AAPL,ROM
boot-file                               
diag-device         fd:diags            fd:diags
diag-file                               
input-device        ttya                ttya
output-device       ttya                ttya
oem-banner                              
oem-logo                                
nvramrc                                 
boot-command        boot                boot
 ok
0 >