Open Firmware variable for Boot-device for a new disk

Hallo guys,

I have changed the hard disk on my evergreen PowerBook G3 wallstreet
and I cannot boot on it. Astonishingly after installing the disk the
first time I booted the mac it worked
Nobody can suggest me the variable for boot-device or boot-file of the
Open Firmware?
I have tried boot-device mac-io/ata-4@1f000/@0:9,\\:tbxi but OF says
it cannot be opened...(well it was just a try..)

This is the result of the command printenv:
0 > printenv

VARIABLE CURRENT DEFAULT
1ittle-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
real-base -1 -1
real-size 100000 100000
virt-base -1 -1
virt-size 100000 100000
load-base 4000 4000
pci-probe-1ist -1 -1
screen-#columns 64 64
screen-#rows 28 28
selftest-#megs 0 0
boot-device /AAPL,ROM /AAPL,ROM
boot-file
diag-device fd:diags fd:diags
didg-file
input-device Kbd kbd
output-device screen screen
oem-banner
oem-logo
nvramrc
boot-command boot boot

The old was OS 8.6 the new second hand disk is OSX, the Open Firmware
version is 2.0.1.
Thanks for help any kind...

Bibinix