I am trying to install VirtualBox on my Ubuntu.

I first tried to sudo apt-get install virtualbox-ose in a terminal, but after the configuration step, it fails with an error:

No suitable module for running kernel found
When proceeding with starting virtualbox, I get this error:
WARNING: The character device /dev/vboxdrv does not exist.
Please install the virtualbox-ose-dkms package and the appropriate
headers, most likely linux-headers-generic.

You will not be able to start VMs until this problem is fixed.

So I tried the package from http://www.virtualbox.org/, but starting VirtualBox fails with:

WARNING: The vboxdrv kernel module is not loaded. Either there is no module
available for the current kernel (2.6.38-8-generic-pae) or it failed to
load. Please recompile the kernel module and install it by

  sudo /etc/init.d/vboxdrv setup

You will not be able to start VMs until this problem is fixed.

So I ran sudo /etc/init.d/vboxdrv setup, but it fails too:

* Stopping VirtualBox kernel modules                                                           [ OK ] 

* Uninstalling old VirtualBox DKMS kernel modules                                                            [ OK ] 

* Trying to register the VirtualBox kernel modules using DKMS                                                       

Error! Your kernel headers for kernel 2.6.38-8-generic-pae cannot be found at

/lib/modules/2.6.38-8-generic-pae/build or /lib/modules/2.6.38-8-generic-pae/source.



* Failed, trying without DKMS

* Recompiling VirtualBox kernel modules                                                                             

* Look at /var/log/vbox-install.log to find out what went wrong

The contents of /var/log/vbox-install.log.

As I am stuck, I also tried to install kernel-devel with yum, still fruitless:

root@ubuntu# yum install kernel-devel

Setting up Install Process

No package kernel-devel available.

Nothing to do

Now I've no idea how to correct this. Any ideas?