How to Restore mach_kernel

Mach is a kernel of an operating system. Mach kernel is often considered as microkernel but not all versions of Mach are microkernel. Microkernel is the software that can provide the mechanisms for an operating system implementation. The Kernel is the central component of an operating system that provides interface between applications and actual data processing done at the hardware level. Therefore, it controls the computer hardware. Mac OS X starts using mach_kernel. This is an important file and is invisible in the computer. Some of the users replace this file with new mach_kernel file in order to make computer runs faster but due to mistake the process goes wrong and needs to be restored the file. Here you will see how to restore mach_kernel. Read the followings.

When you try to replace mach_kernel with new mach_kernel then you are needed to backup the older kernel file so that in case of any wrong, the file can be restored. You can backup your older kernel by the command as mentioned below:

cp /mach_kernel ~/Desktop/mach_kernel.bak

But when you replace new mach_kernel with the older one by running the command like cp ~/Desktop/mach_kernel /. After reboot your system, you come across some issues. In this case, you are required to restore mach_kernel.

How to restore mach_kernel:

If you want to restore mach_kernel i.e. to restore to the original kernel then you will have to simply replace the new kernel with backup kernel. It assumes that the files are still in the same location. So you first move the backup file onto your desktop again and then try replacement with the new mach_kernel file.

cp mach_kernel.bak ~/Desktop/mach_kernel (This will be the backup to the desktop)

sudo cp ~/Desktop/mach_kernel / (This puts your backup kernel into its proper location on your drive)

This way you can restore the original mach_kernel file. If you are unable to restore then you will need to reinstall latest Mac operating system and will need to use Mac data recovery software in order to recover the lost data from the drive after re installation of Mac OS. The software recovers all the data from corrupted or formatted drive.

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