PowerBook G4 15 Keyboard not working during Leopard install

Question

I need help!
I have a powerbook G4 I wanted to sell. I was looking on amazon at a few reviews, and I found a MacBook Pro review that said how to do a reset of the entire computer. I was excited, because I wanted to sell, and I did it. Here is what it told me to do:
"Instructions for resetting a Mac computer to factory specs.
First, you need to reboot the machine in single-user mode.This will start the computer up in a text-only terminal.To start up in single-user mode,turn the computer on while holding down the Command and "S" keys until the screen begins to show text.
Eventually,the text will stop loading,and you'll be left at a prompt with the word "root". Once you're there,you type in a few commands.Make sure you type it exactly as I have written it, and hit the Return key at the end of each line:
Type:
mount -uw /
What we did here was tell the computer to make your hard drive readable and writable. Next you type the command that will erase all of the users' data.I assume you want to erase all personal data,since you want the computer to start up as though it's brand new.
Type:
rm -rf /Users/*
The above command says to remove absolutely everything in the Users folder (make sure you type shift-8 to make the asterisk symbol).
Now, type this:
cd /var/db/
rm .AppleSetupDone
rm .TimeMachine.Cookie
rm .TimeMachine.Results.plist
rm .com.apple.iokit.graphics
rm -rf dhcpclient
rm -rf samba
Basically, these are settings and preference files for some programs on a Mac, and we want those to be reset when the computer turns back on.The most important file to remove is the .AppleSetupDone file (and yes, it does start with a period). The computer thinks you're turning it on for the first time.
We're done, so you've got two choices: if you want to shut the computer down, type:
shutdown -h now
This will shut down the computer and make it ready for the purchaser to set up the computer and register it.
If you want to reboot the computer (to check out your handy work), type:
reboot
Press the return key."
Now, when the language slideshow appears (the leopard install video), after that, I cannot use my keyboard to press enter, or type. It makes the sound that is made when you cannot type, so it is not a hardware issue. I cannot get past the registration, so that is not it either. Help!
Powerbook G4 15"-2005 model
Backlit Keyboard
1gb RAM

Answer 1

Tough without the Install disc, but some things to try...
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).