How to install/update Intel microcode firmware on Linux

To install or update the Intel microcode firmware on a Linux system, you can use the following steps:

1. Install the microcode_ctl package:

sudo apt-get update
sudo apt-get install microcode.ctl

This will install the microcode_ctl package and its dependencies.

2. Update the microcode firmware:

sudo update-initramfs -u

This will update the microcode firmware to the latest version available.

3. Reboot the system:

sudo reboot

This will apply the updated microcode firmware on the next boot.

4. Check the microcode version:

dmesg | grep microcode

This will print the version of the microcode firmware that is currently in use.