[OmniScient]

Hi

I've just updated my TiBook 400 (yes I know, it's old) to 10.4.2 and when I reboot it says:

"System extension cannot be used. The system extension "/System/Library/Extensions/AppleADBKeyboard.kext" was installed improperly and cannot be used. Please try reinstalling it, or contact the product's vendor for an update."

I've tried to replace the extension with a "fresh" 10.4.2 one from my iMac G4, but that didn't help. I've also tried to reinstall the update through the combo update, with no luck. I desperately need to fix this since I can't use the keyboard on the powerbook thus making the machine useless :/

Does anybody have any good suggestions?

regards

Franck

[Detrius]

Have you tried just removing it? It's ADB after all, so you shouldn't need it. Have you tried repairing permissions? The kextloader is picky about permissions on kernel extensions, but it usually warns you and asks if you want to fix the permissions.

[OmniScient]

Originally Posted by Detrius

Have you tried just removing it? It's ADB after all, so you shouldn't need it. Have you tried repairing permissions? The kextloader is picky about permissions on kernel extensions, but it usually warns you and asks if you want to fix the permissions.

Tank you for your response Ditrius.

I've just repaired the permissions, and voila it works again... What a major relief and at the same time I can't help but feel a little dense that I didn't try it a little sooner. Good thing you stepped in and thank you very much indeed for doing so.

With regards to the ADB not being needed, I was actually under the impressions that the keyboard on the first gen tiBooks was ADB? I mean, nobody would notice anyways and it would make development cost transitioning from the Pismo's smaller. I may be wrong, but I do remember reading about it somewhere...

again. thanks for your help

regards

Franck

edit: I found this link when trying to search for ADB and apple laptops.

http://www.oreillynet.com/cs/user/view/cs_msg/10404

[tooki]

Originally Posted by Detrius

Have you tried just removing it? It's ADB after all, so you shouldn't need it.

Only the AlBooks (and maybe the very last TiBooks, I'm not entirely sure) have USB input devices. All the ones before have ADB keyboards and trackpads.

tooki

[Art Vandelay]

Only very recent Apple laptops stopped using ADB for the trackpad and keyboard. My 2003 15" AlBook still used ADB for the keyboard and trackpad. A new 2005 15" AlBook at work finally uses USB for both.

[tooki]

You're absolutely right -- it was one version past the switch to aluminum, not one version before (the source of my confusion.)

tooki