Instale o kernel 3.4LTS em seu Ubuntu

Arquitetura i386 (32bit)
cd Downloads
 
a- São dois linux-headers
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-headers-3.4.9-030409_3.4.9-030409.201208151135_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-headers-3.4.9-030409-generic_3.4.9-030409.201208151135_i386.deb

b- São dois linux-image
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-image-3.4.9-030409-generic_3.4.9-030409.201208151135_i386.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-image-extra-3.4.9-030409-generic_3.4.9-030409.201208151135_i386.deb

sudo dpkg -i *.deb

OBS:
Verifique se está instalado com: uname -r
Qualquer problema com virtual box ou remastersys entre com este comando: sudo /etc/init.d/vboxdrv setup

Arquitetura amd64 (64bit)
cd Downloads

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-headers-3.4.9-030409_3.4.9-030409.201208151135_all.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-headers-3.4.9-030409-generic_3.4.9-030409.201208151135_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-image-3.4.9-030409-generic_3.4.9-030409.201208151135_amd64.deb

wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4.9-quantal/linux-image-extra-3.4.9-030409-generic_3.4.9-030409.201208151135_amd64.deb

sudo dpkg -i *.deb

OBS:

Verifique se está instalado com:
uname -r

Qualquer problema com virtual box ou remastersys entre com este comando:
sudo /etc/init.d/vboxdrv setup


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