how to install kernel 3.4/3.5 and fglrx drivers 13.1 on ubuntu 12.04.02

[Jaoyur]

I have tried to upgrade from kernel 3.2.0-39 to kernel 3.4 (here) and after that installing fglrx drivers 13.1 (compatible up to kernel 3.5).
Here are the steps I followed:

1. Removing (purging) existing drivers
   

   sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev*

rebooted

1. updated open drivers.
   

   sudo add-apt-repository ppa:ubuntu-x-swat/x-updates

sudo apt-get update && sudo apt-get upgrade

rebooted

1. installed some dependencies and then tried to install fglrx drivers:
   

   sudo sh amd-driver-installer-*.run --buildpkg Ubuntu/precise  sudo dpkg -i *.deb

At this point the installation stuck at:

update-initramfs: Generating /boot/initrd.img-3.4.0-0304-generic

nothing happens and I have to stop installation and I need to use dpkg-reconfigure -a.
Can you tell me how install kernel and fglrx drivers in the correct way? Do I need to know anything else to do that?
Thanks

[Jaoyur]

I found this: http://askubuntu.com/questions/25761...el-to-3-5-0-23
Is it maybe a solution for my problem in order to upgrade to newer kernel (3.5)?
I mean: maybe those are the steps I have to follow to upgrade without any block during installation, what do you think?
Do I need to remove fglrx before following those steps to upgrade to 3.5 or not?