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[p.H]

about:

The following guide will allow you to uninstall a kext using Single User Mode during boot when a kext that you have recently installed is causing your system to not boot. The installation VodooHDA.kext on some systems is a example of a kexts that may make your system to not boot.

Accreditation:

Giorgio Multi post found here
Wiki post found here
Edited by p.H and Rampage Dev

Method 1: Mac OS X Using Single User Mode

Part 1: What Is Single User Mode

Single User Mode is different from a Safe Mode boot in that the system goes directly to the console instead of starting up the core elements of Mac OS X (items in /System/Library/, ignoring /Library/, ~/Library/, et al.). From there users are encouraged by a prompt to run fsck or other command line utilities as needed (or installed).

Part 2: How To Boot Into Single User Mode

1. Record the kext you wish to remove

2. At the boot loader prompt screen type in the following:

-S

3. Press Enter


4. After the system loads a blinking cursor will appear. This indicates that you may start typing in commands.

5. Replace name_of_the_kext.kext with the name of your kext you wish to remove

6. Type the commands below, press enter after finish entering each line:

mount - uw /
cd /System/Library/Extensions
rm -rf name_of_the_kext.kext
sudo rm -rf /System/Library/Caches/*
shutdown -r now

Note Make Sure That The Spaces And Casing In The Text Is Correct

7. The kext should now be removed

Method 2: Using Windows Or Other Operating System

You can remove a kext by using macdrive or other programs which allow you to access the OS X partition. All you need to do is just delete the entire folder of the kext. (kexts are displayed as folders on windows or other OS)