How to Disable Unused Kernel Modules

Step 1: List Loaded Modules

lsmod

Step 2: Identify Unused/Unneeded Modules

Common modules to disable: firewire, thunderbolt, bluetooth, wifi, dccp, sctp, rds, tipc, cramfs, freevxfs, jffs2, hfs, hfsplus, udf.

Step 3: Blacklist Module

sudo nano /etc/modprobe.d/blacklist.conf

Add lines:

blacklist dccp
blacklist sctp
blacklist rds
blacklist tipc
blacklist cramfs
install cramfs /bin/false

Step 4: Unload Already Loaded Module

sudo modprobe -r dccp

Step 5: Update initramfs

sudo update-initramfs -u