[OpenBSD] How to run the multi-processor kernel.

If you have some modern Intel or AMD x86 CPU, you certainly have a multiprocessor cpu with many cores. As you can see after the default installation of OpenBSD, you have enabled the single-core kernel.

To change this setup, I recommend you to read the man page of ‘boot.conf’ (man boot.conf) to know what you have to do. However I can tell you the answer, right now:

Edit or create a file called boot.conf in /etc directory, as root:

# vi /etc/boot.conf

Add this line: set image bsd.mp

Save the file and reboot your computer. Remember, the default kernel is the most recommended for stability, compatibility of drivers and devices and so on.

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2 thoughts on “[OpenBSD] How to run the multi-processor kernel.

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