It is also not too hard. if you use "fakeroot make-kpkg ...." as below, these are my scrappy notes on the process,
apt-get install build-essential fakeroot kernel-package
cd /usr/src/linux
download latest kernel to /usr/src
untar it using tar-xvzf or tar -xvjf
ln -s /usr/src/linux-2.6.27.4 linux
cd linux
copy kernel .config file from LMCE kernel area
cp /usr/src/linux-source-2.6.22/.config ./.config
if X11 (graphics console) is still working
DISPLAY=:0.0 make xconfig
otherwise
make menuconfig
ensure that the right processor family is selected, also that the clock interrupts are
set to 1000 Hz
export CONCURRENCY_LEVEL=3
fakeroot make-kpkg --initrd --revision=custom.1.0 kernel_image kernel_headers
dpkg -i linux-headers-2.6.27.4.xxxxxx.deb linux-image-2.6.27.4-xxxxxxx.deb
(or whatever the 2 new deb files are called)
reboot into single user mode, by editing the menu line in grub and putting "single" with no quotes at the end of the line. then need to run NVIDIA installer, make sure you make a copy of your GOOD /etc/X11/xorg.conf file before you do this so you can copy it back once LMCE stomps on it with the AV wizard. If you are using kernel 2.6.27 you *MUST* use nvidial installer 177.80 (latest one, use the one ending in 0.run if you can't get the one ending in 1.run to work, my NVIDIAxxxx177.80xxx1.run file failed with a wrong checksum no matter how I tried to download it).
http://us.download.nvidia.com/XFree86/Linux-x86/177.80/NVIDIA-Linux-x86-177.80-pkg1.runhttp://us.download.nvidia.com/XFree86/Linux-x86/177.80/NVIDIA-Linux-x86-177.80-pkg0.runAnyway, short untidy version of instructions that worked for me- all is up and running- well Mythtv, my display, and UI2 so not a bad start.
minor glitch with mythtv where rtc under /proc is missing, had to edit /etc/init.d/mythtv-backend script to stop it trying to write to it. you might be lucky and your RTC may be there, you could try disabling HPET and enabling traditional RTC.
