On my Mac I have a load of Kexts appearing that read like this (there are 14 or so):
The system extension "/System/Library/Extensions/BJUSBLoad.kext" was installed improperly and cannot be used...
Now they didn't start appearing after I consciously did anything, and I've read various threads about it elsewhere. I wonder if there is a programming solution here (using Terminal, perhaps) - something that will suppress the kexts? They mostly seem to relate to hp printer drivers, that sort of thing. Stuff I never use.
None of them seem to relate to things in my Login Items in System Preferences.
After discussing this on StackOverflow, I received some advice to run kextutil -n on them:
kextutil -n /System/Library/Extensions/BJUSBLoad.kext
So I did that, and got this:
/System/Library/Extensions/BJUSBLoad.kext - dependency 'com.apple.kernel.libkern' not found. Diagnostics for /System/Library/Extensions/BJUSBLoad.kext: Warnings: Personality CFBundleIdentifier differs from containing kext's (not necessarily a mistake, but rarely done): IJ170b...etc.
The message goes on, and ends like this:
Kext has no executable or compatible version, so it should not declare any OSBundleLibraries.
Code Signing Failure: not code signed
Any idea why or what I need to do?