post_install() 
{
    DKMS=`which dkms 2>/dev/null`

    echo ">>> DKMS: Module add, build, and install "
    _pkgver="${1%-*}"

    $DKMS add  -m nvidia -v "$_pkgver"
    $DKMS build -m nvidia -v "$_pkgver"
    $DKMS install -m nvidia -v "$_pkgver"

    /sbin/depmod -a
}

pre_upgrade() 
{
    pre_remove
}

post_upgrade() 
{
    post_install
}

pre_remove() 
{
    DKMS=`which dkms 2>/dev/null`
    echo ">>> DKMS: Module uninstall "

    _pkgver="${1%-*}"
    $DKMS remove -m nvidia -v $_pkgver --all

}

post_remove()
{
    /sbin/depmod -a
}