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Level 1

4 points

Extensions have wrong permissions_Corrupt System

I am trying to see how to fix the permissions on my computer. I have ran the fix permissions from the Disk Utility until it says everything is fine. I have even booted from a Snow Leopard disk to run fix persmissions and repair disk. Still having the same problem.

The problem is, that in the finder I still keep getting errors saying extension "x" could not be used because it was not installed correctly. The computer crashed while doing an update so I believe this to be what caused the problem. I have way to many applications to have to reinstall each one. I have the old extension folders for the Library and System (that I know are fine) but cannot figure out what to boot from that will show the old finder so I can replace them (and I obviously cannot replace them on an active system). Unfortuately all my latest TimeMachine BU have the corrupt system now too. I want to update to Lion but not with a corrupt system. Please help.

Mac Pro 2.66 Dual Intel 13GB RAM, Mac OS X (10.6.4), iPhoto 8.0.3, iTunes 10, iPhone 3GS 8G

Posted on Apr 30, 2012 1:53 PM

17 replies

X423424X

Level 6

14,265 points

May 1, 2012 9:09 PM in response to cherylco

cherylco wrote:

Here one of the errors. They just keep coming

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

I googled "com_cy_driver_USB_Device.kext". One of the hits led me to PockeTec FAQ support page about that driver so I assume it is PockeTec software. That page has a link to drivers to download. And not one of them for the mac is beyond 10.3.9, i.e., way out of date. So I assume you have one of these and as the error you are seeing says, it cannot be used [at least on anything beyond 10.3.9].

So remove it. Open terminal, and then copy/paste the following line into the terminal window:

sudo rm -rf /System/Library/Extensions/com_cy_driver_USB_Device.kext

Hit return. You will be prompted for your admin password. It won't be echoed as you type it. Hit return again. The kext should have been removed so reboot. That reboot will take a little longer as the kext cache gets rebuilt.

Linc Davis

Level 10

209,547 points

May 1, 2012 9:31 PM in response to cherylco

Your best option may be to back up all data, then erase the boot volume, reinstall the Mac OS, and then restore your user data and only the software you really need.

Extensions have wrong permissions_Corrupt System