G4 Cube FWUpdate -->boot fiasco
I'm new to this group and to the ppc/apple hardware.
With Debian I have experiences for several years ... on the i386 platform.
In Mid-May I bought a G4 Cube.
In general: it is the the 'new' (for me) hardware I have difficulties with.
After some fiddling with MacOS and MacOSX on my Cube I decided to put
'my' beloved Debian additionally on the HDD.
This decision resulted in a three-system boot configuration, booting
Debian as default :-)
With the G4 Cube having a so-called NewWorld PowerMac, I achieved the
multi-booting by a Apple_Bootstrap partition activated by
ybin and /etc/yaboot.conf.
A nice thing I found by access was booting with the 'Option' key which
also in a kind of GUI showed a Linux(penguin) boot icon choosable by
mouse (plus a bootable CD if inserted).
All this is lost now!
For I did the newest "recommended" 'G4 Cube FWUpdate' version 4.1.8
I did it having tested the additional RAM before.
I had not thought of it damaging completely the boot configuration, even
the boot GUI apple-feature.
The new situation:
1) Booting into OpenFirmware now still shows the linux entry but it
doesn't boot Debian any more.
2) Booting with the 'Option' key pressed now flickers up the boot 'GUI'
for a short moment. In it only the boot volume choosed in one of the
MacOSes can be seen. Then I get an OpenFirmware prompt. There I only
see the possibility typing 'boot mac-os' to get a system.
3) Additionaly now I haven't any possibility to boot from a CD.
Neither pressing 'c' nor with the Option key.
What can I do get a boot status similar to that before the RomUpdate?
Thanks a lot for hints.