Blacklisting a kernel module

• Some modules are loaded as part of the initramfs. mkinitcpio -M will print out all automatically detected modules: to prevent the initramfs from loading some of those modules, blacklist them in /etc/modprobe.d/modprobe.conf

• Running mkinitcpio -v will list all modules pulled in by the various hooks:

mkinitcpio -v

• Once you have your module name, create a .conf file under /etc/modprobe.d/ you can call it whatever name.For the purposes of illustration I will use modprobe.conf

vim /etc/modprobe.d/modprobe.conf

• In this case I am blacklisting a broadcom module brcmsmac.

# /etc/modprobe.d/modprobe.conf

# Do not load brcmsmac module

blacklist brcmsmac

• Save the file after adding the modules
• Remember to add that .conf file to the FILES section in /etc/mkinitcpio.conf, if you have not done so already.
• Rebuild your initramfs and reboot and you should be good to go.

   mkinitcpio -g  your-image-name