Compiling custom kernel [duplicate]

From memory:

• Log in as root.

• Download the kernel sources from kernel.org and uncompress them to /usr/src/.

• Open a shell in the directory you just unpacked and run:

  make oldconfig && \
  make xconfig && \
  make && \
  make modules && \
  make install && \
  make modules_install
  

• Edit your grub configuration and reboot.

If you're not running X then change make xconfig to make menuconfig or make config.

If you want things to go a bit quicker, change make to make -j4 to run 4 tasks in parallel (change 4 to the number of cores your machine has). The same applies to the make modules command.