Howto: install dctcp (or new kernel) in debian

As I was fighting with DCTCP (datacenter TCP) installation last week, here is the recipe on how to win this battle. Some of the steps are trivial but some of them like reading the old tactics and ensuring that you really won are not an obvious steps for new generals.

Prepare for the battle:
[ ~ ]>sudo apt-get install kernel-package libncurses5-dev fakeroot


Get instructions for operation "dctcp":
[ ~ ]>mkdir dctcp
[ ~ ]>cd dctcp
[ ~/dctcp ]>wget  http://www.stanford.edu/~alizade/Site/DCTCP_files/dctcp-2.6.38.3-rev1.1.0.tgz
[ ~/dctcp ]>tar -xvvf dctcp-2.6.38.3-rev1.1.0.tgz


Get the battle plan:
[ ~/dctcp ]>wget http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.38.3.tar.bz2
[ ~/dctcp ]>tar jxvf linux-2.6.38.3.tar.bz2


Prepare supplies:
[ ~/dctcp ]>cp dctcp-2.6.38.3-rev1.1.0/dctcp-2.6.38.3-rev1.1.0.patch linux-2.6.38.3
[ ~/dctcp ]>cd  linux-2.6.38.3
[ ~/dctcp/linux-2.6.38.3] patch -p1 < dctcp-2.6.38.3-rev1.0.0.patch


Read old battle tactic:
[ ~/dctcp/linux-2.6.38.3 ]>cp /boot/config-x.y.z-amd64 .config
[ ~/dctcp/linux-2.6.38.3 ]>make oldconfig


Begin the battle:
[ ~/dctcp/linux-2.6.38.3 ]>fakeroot make-kpkg clean
[ ~/dctcp/linux-2.6.38.3 ]>fakeroot make-kpkg kernel_image

Battlefield after the battle:
[ ~/dctcp/linux-2.6.38.3 ]>cd ..
[ ~/dctcp ]>sudo dpkg -i linux-image-2.6.38.3_2.6.38.3-10.00.Custom_amd64.deb


Ensure the victory by signing boot contracts:
[ ~/dctcp ]>cd /boot
[ /boot ]>sudo mkinitramfs -o initrd.img-2.6.38.3 2.6.38.3
[ /boot ]>sudo update-grub
[ /boot ]>sudo reboot

Source: http://ppershing.blogspot.com/2012/05/howto-install-dctcp-or-new-kernel-in.html