--- vboxdrv.sh.orig	2021-10-18 19:58:10.000000000 +0200
+++ vboxdrv.sh	2021-10-30 20:36:29.483575169 +0200
@@ -61,23 +61,8 @@
 export USERNAME
 export USER=$USERNAME
 
-if test -n "${INSTALL_DIR}" && test -x "${INSTALL_DIR}/VirtualBox"; then
-    MODULE_SRC="${INSTALL_DIR}/src/vboxhost"
-elif test -x /usr/lib/virtualbox/VirtualBox; then
-    INSTALL_DIR=/usr/lib/virtualbox
-    MODULE_SRC="/usr/share/virtualbox/src/vboxhost"
-elif test -x "${SCRIPT_DIR}/VirtualBox"; then
-    # Executing from the build directory
-    INSTALL_DIR="${SCRIPT_DIR}"
-    MODULE_SRC="${INSTALL_DIR}/src"
-else
-    # Silently exit if the package was uninstalled but not purged.
-    # Applies to Debian packages only (but shouldn't hurt elsewhere)
-    exit 0
-fi
 VIRTUALBOX="${INSTALL_DIR}/VirtualBox"
 VBOXMANAGE="${INSTALL_DIR}/VBoxManage"
-BUILDINTMP="${MODULE_SRC}/build_in_tmp"
 if test -u "${VIRTUALBOX}"; then
     GROUP=root
     DEVICE_MODE=0600
@@ -148,131 +133,12 @@
     echo "${1}" >> "${LOG}"
 }
 
-module_build_log()
-{
-    setup_log
-    echo "${1}" | egrep -v \
-        "^test -e include/generated/autoconf.h|^echo >&2|^/bin/false\)$" \
-        >> "${LOG}"
-}
-
 # Detect VirtualBox version info or report error.
 VBOX_VERSION="`"$VBOXMANAGE" -v | cut -d r -f1`"
 [ -n "$VBOX_VERSION" ] || failure 'Cannot detect VirtualBox version number'
 VBOX_REVISION="r`"$VBOXMANAGE" -v | cut -d r -f2`"
 [ "$VBOX_REVISION" != "r" ] || failure 'Cannot detect VirtualBox revision number'
 
-## Output the vboxdrv part of our udev rule.  This is redirected to the right file.
-udev_write_vboxdrv() {
-    VBOXDRV_GRP="$1"
-    VBOXDRV_MODE="$2"
-
-    echo "KERNEL==\"vboxdrv\", NAME=\"vboxdrv\", OWNER=\"root\", GROUP=\"$VBOXDRV_GRP\", MODE=\"$VBOXDRV_MODE\""
-    echo "KERNEL==\"vboxdrvu\", NAME=\"vboxdrvu\", OWNER=\"root\", GROUP=\"root\", MODE=\"0666\""
-    echo "KERNEL==\"vboxnetctl\", NAME=\"vboxnetctl\", OWNER=\"root\", GROUP=\"$VBOXDRV_GRP\", MODE=\"$VBOXDRV_MODE\""
-}
-
-## Output the USB part of our udev rule.  This is redirected to the right file.
-udev_write_usb() {
-    INSTALLATION_DIR="$1"
-    USB_GROUP="$2"
-
-    echo "SUBSYSTEM==\"usb_device\", ACTION==\"add\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh \$major \$minor \$attr{bDeviceClass}${USB_GROUP}\""
-    echo "SUBSYSTEM==\"usb\", ACTION==\"add\", ENV{DEVTYPE}==\"usb_device\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh \$major \$minor \$attr{bDeviceClass}${USB_GROUP}\""
-    echo "SUBSYSTEM==\"usb_device\", ACTION==\"remove\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh --remove \$major \$minor\""
-    echo "SUBSYSTEM==\"usb\", ACTION==\"remove\", ENV{DEVTYPE}==\"usb_device\", RUN+=\"$INSTALLATION_DIR/VBoxCreateUSBNode.sh --remove \$major \$minor\""
-}
-
-## Generate our udev rule file.  This takes a change in udev rule syntax in
-## version 55 into account.  It only creates rules for USB for udev versions
-## recent enough to support USB device nodes.
-generate_udev_rule() {
-    VBOXDRV_GRP="$1"      # The group owning the vboxdrv device
-    VBOXDRV_MODE="$2"     # The access mode for the vboxdrv device
-    INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
-    USB_GROUP="$4"        # The group that has permission to access USB devices
-    NO_INSTALL="$5"       # Set this to "1" to remove but not re-install rules
-
-    # Extra space!
-    case "$USB_GROUP" in ?*) USB_GROUP=" $USB_GROUP" ;; esac
-    case "$NO_INSTALL" in "1") return ;; esac
-    udev_write_vboxdrv "$VBOXDRV_GRP" "$VBOXDRV_MODE"
-    udev_write_usb "$INSTALLATION_DIR" "$USB_GROUP"
-}
-
-## Install udev rule (disable with INSTALL_NO_UDEV=1 in
-## /etc/default/virtualbox).
-install_udev() {
-    VBOXDRV_GRP="$1"      # The group owning the vboxdrv device
-    VBOXDRV_MODE="$2"     # The access mode for the vboxdrv device
-    INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
-    USB_GROUP="$4"        # The group that has permission to access USB devices
-    NO_INSTALL="$5"       # Set this to "1" to remove but not re-install rules
-
-    if test -d /etc/udev/rules.d; then
-        generate_udev_rule "$VBOXDRV_GRP" "$VBOXDRV_MODE" "$INSTALLATION_DIR" \
-                           "$USB_GROUP" "$NO_INSTALL"
-    fi
-    # Remove old udev description file
-    rm -f /etc/udev/rules.d/10-vboxdrv.rules 2> /dev/null
-}
-
-## Create a usb device node for a given sysfs path to a USB device.
-install_create_usb_node_for_sysfs() {
-    path="$1"           # sysfs path for the device
-    usb_createnode="$2" # Path to the USB device node creation script
-    usb_group="$3"      # The group to give ownership of the node to
-    if test -r "${path}/dev"; then
-        dev="`cat "${path}/dev" 2> /dev/null`"
-        major="`expr "$dev" : '\(.*\):' 2> /dev/null`"
-        minor="`expr "$dev" : '.*:\(.*\)' 2> /dev/null`"
-        class="`cat ${path}/bDeviceClass 2> /dev/null`"
-        sh "${usb_createnode}" "$major" "$minor" "$class" \
-              "${usb_group}" 2>/dev/null
-    fi
-}
-
-udev_rule_file=/etc/udev/rules.d/60-vboxdrv.rules
-sysfs_usb_devices="/sys/bus/usb/devices/*"
-
-## Install udev rules and create device nodes for usb access
-setup_usb() {
-    VBOXDRV_GRP="$1"      # The group that should own /dev/vboxdrv
-    VBOXDRV_MODE="$2"     # The mode to be used for /dev/vboxdrv
-    INSTALLATION_DIR="$3" # The directory VirtualBox is installed in
-    USB_GROUP="$4"        # The group that should own the /dev/vboxusb device
-                          # nodes unless INSTALL_NO_GROUP=1 in
-                          # /etc/default/virtualbox.  Optional.
-    usb_createnode="$INSTALLATION_DIR/VBoxCreateUSBNode.sh"
-    # install udev rule (disable with INSTALL_NO_UDEV=1 in
-    # /etc/default/virtualbox)
-    if [ "$INSTALL_NO_GROUP" != "1" ]; then
-        usb_group=$USB_GROUP
-        vboxdrv_group=$VBOXDRV_GRP
-    else
-        usb_group=root
-        vboxdrv_group=root
-    fi
-    install_udev "${vboxdrv_group}" "$VBOXDRV_MODE" \
-                 "$INSTALLATION_DIR" "${usb_group}" \
-                 "$INSTALL_NO_UDEV" > ${udev_rule_file}
-    # Build our device tree
-    for i in ${sysfs_usb_devices}; do  # This line intentionally without quotes.
-        install_create_usb_node_for_sysfs "$i" "${usb_createnode}" \
-                                          "${usb_group}"
-    done
-}
-
-cleanup_usb()
-{
-    # Remove udev description file
-    rm -f /etc/udev/rules.d/60-vboxdrv.rules
-    rm -f /etc/udev/rules.d/10-vboxdrv.rules
-
-    # Remove our USB device tree
-    rm -rf /dev/vboxusb
-}
-
 # Returns path to module file as seen by modinfo(8) or empty string.
 module_path()
 {
@@ -415,8 +281,6 @@
         mkdir -p -m 0750 /dev/vboxusb 2>/dev/null
         chown root:vboxusers /dev/vboxusb 2>/dev/null
     fi
-    # Remove any kernel modules left over from previously installed kernels.
-    cleanup only_old
     succ_msg "VirtualBox services started"
 }
 
@@ -497,102 +361,10 @@
     fi
 }
 
-cleanup()
-{
-    # If this is set, only remove kernel modules for no longer installed
-    # kernels.  Note that only generated kernel modules should be placed
-    # in /lib/modules/*/misc.  Anything that we should not remove automatically
-    # should go elsewhere.
-    only_old="${1}"
-    for i in /lib/modules/*; do
-        # Check whether we are only cleaning up for uninstalled kernels.
-        test -n "${only_old}" && test -e "${i}/kernel/drivers" && continue
-        # We could just do "rm -f", but we only want to try deleting folders if
-        # we are sure they were ours, i.e. they had our modules in beforehand.
-        if    test -e "${i}/misc/vboxdrv.ko" \
-           || test -e "${i}/misc/vboxnetadp.ko" \
-           || test -e "${i}/misc/vboxnetflt.ko" \
-           || test -e "${i}/misc/vboxpci.ko"; then
-            rm -f "${i}/misc/vboxdrv.ko" "${i}/misc/vboxnetadp.ko" \
-                  "${i}/misc/vboxnetflt.ko" "${i}/misc/vboxpci.ko"
-            version=`expr "${i}" : "/lib/modules/\(.*\)"`
-            depmod -a "${version}"
-            sync
-        fi
-        # Remove the kernel version folder if it was empty except for us.
-        test   "`echo ${i}/misc/* ${i}/misc/.?* ${i}/* ${i}/.?*`" \
-             = "${i}/misc/* ${i}/misc/.. ${i}/misc ${i}/.." &&
-            rmdir "${i}/misc" "${i}"  # We used to leave empty folders.
-    done
-}
-
 # setup_script
 setup()
 {
-    begin_msg "Building VirtualBox kernel modules" console
-    log "Building the main VirtualBox module."
-    if ! myerr=`$BUILDINTMP \
-        --save-module-symvers /tmp/vboxdrv-Module.symvers \
-        --module-source "$MODULE_SRC/vboxdrv" \
-        --no-print-directory install 2>&1`; then
-        "${INSTALL_DIR}/check_module_dependencies.sh" || exit 1
-        log "Error building the module:"
-        module_build_log "$myerr"
-        failure "Look at $LOG to find out what went wrong"
-    fi
-    log "Building the net filter module."
-    if ! myerr=`$BUILDINTMP \
-        --use-module-symvers /tmp/vboxdrv-Module.symvers \
-        --module-source "$MODULE_SRC/vboxnetflt" \
-        --no-print-directory install 2>&1`; then
-        log "Error building the module:"
-        module_build_log "$myerr"
-        failure "Look at $LOG to find out what went wrong"
-    fi
-    log "Building the net adaptor module."
-    if ! myerr=`$BUILDINTMP \
-        --use-module-symvers /tmp/vboxdrv-Module.symvers \
-        --module-source "$MODULE_SRC/vboxnetadp" \
-        --no-print-directory install 2>&1`; then
-        log "Error building the module:"
-        module_build_log "$myerr"
-        failure "Look at $LOG to find out what went wrong"
-    fi
-    if test -e "$MODULE_SRC/vboxpci"; then
-        log "Building the PCI pass-through module."
-        if ! myerr=`$BUILDINTMP \
-            --use-module-symvers /tmp/vboxdrv-Module.symvers \
-            --module-source "$MODULE_SRC/vboxpci" \
-            --no-print-directory install 2>&1`; then
-            log "Error building the module:"
-            module_build_log "$myerr"
-            failure "Look at $LOG to find out what went wrong"
-        fi
-    fi
-    rm -f /etc/vbox/module_not_compiled
-    depmod -a
-    sync
-    succ_msg "VirtualBox kernel modules built"
-    # Secure boot on Ubuntu and Debian.
-    if test -n "$HAVE_SEC_BOOT" &&
-        type update-secureboot-policy >/dev/null 2>&1; then
-        SHIM_NOTRIGGER=y update-secureboot-policy --new-key
-    fi
-    if test -f "$DEB_PUB_KEY" && test -f "$DEB_PRIV_KEY"; then
-        HAVE_DEB_KEY=true
-        for i in $MODULE_LIST; do
-            kmodsign sha512 /var/lib/shim-signed/mok/MOK.priv \
-                /var/lib/shim-signed/mok/MOK.der \
-                /lib/modules/"$KERN_VER"/misc/"$i".ko
-        done
-        # update-secureboot-policy "expects" DKMS modules.
-        # Work around this and talk to the authors as soon
-        # as possible to fix it.
-        mkdir -p /var/lib/dkms/vbox-temp
-        update-secureboot-policy --enroll-key 2>/dev/null ||
-            begin_msg "Failed to enroll secure boot key." console
-        rmdir -p /var/lib/dkms/vbox-temp 2>/dev/null
-    fi
+   echo "Not implemented! Please use the virtualbox-kernel.SlackBuild available at SlackBuilds.org instead."
 }
 
 dmnstatus()
@@ -642,20 +414,7 @@
     stop && start
     ;;
 setup)
-    test -n "${2}" && export KERN_VER="${2}"
-    # Create udev rule and USB device nodes.
-    ## todo Wouldn't it make more sense to install the rule to /lib/udev?  This
-    ## is not a user-created configuration file after all.
-    ## todo Do we need a udev rule to create /dev/vboxdrv[u] at all?  We have
-    ## working fall-back code here anyway, and the "right" code is more complex
-    ## than the fall-back.  Unnecessary duplication?
-    stop && cleanup
-    setup_usb "$GROUP" "$DEVICE_MODE" "$INSTALL_DIR"
-    start
-    ;;
-cleanup)
-    stop && cleanup
-    cleanup_usb
+    setup
     ;;
 force-reload)
     stop