diff --git a/nixos/modules/virtualisation/virtualbox-host.nix b/nixos/modules/virtualisation/virtualbox-host.nix
index 6f737018174..41bcb909fb5 100644
--- a/nixos/modules/virtualisation/virtualbox-host.nix
+++ b/nixos/modules/virtualisation/virtualbox-host.nix
@@ -104,7 +104,7 @@ in
       "VBoxNetNAT"
       "VBoxSDL"
       "VBoxVolInfo"
-      "VirtualBox"
+      "VirtualBoxVM"
     ]));
 
     users.groups.vboxusers.gid = config.ids.gids.vboxusers;
diff --git a/nixos/tests/virtualbox.nix b/nixos/tests/virtualbox.nix
index 84d5f3e1530..844ce47d743 100644
--- a/nixos/tests/virtualbox.nix
+++ b/nixos/tests/virtualbox.nix
@@ -2,9 +2,26 @@
   config ? {},
   pkgs ? import ../.. { inherit system config; },
   debug ? false,
-  enableUnfree ? false
+  enableUnfree ? false,
+  # Nested KVM virtualization (https://www.linux-kvm.org/page/Nested_Guests)
+  # requires a modprobe flag on the build machine: (kvm-amd for AMD CPUs)
+  #   boot.extraModprobeConfig = "options kvm-intel nested=Y";
+  # Without this VirtualBox will use SW virtualization and will only be able
+  # to run 32-bit guests.
+  useKvmNestedVirt ? false,
+  # Whether to run 64-bit guests instead of 32-bit. Requires nested KVM.
+  use64bitGuest ? false,
+  # Whether to enable the virtual UART in VirtualBox guests, allowing to see
+  # the guest console. There is currently a bug in VirtualBox where this will
+  # cause a crash if running with SW virtualization
+  # (https://www.virtualbox.org/ticket/18632). If you need to debug the tests
+  # then enable this and nested KVM to work around the crash (see above).
+  enableVBoxUART ? false
 }:
 
+assert use64bitGuest -> useKvmNestedVirt;
+assert enableVBoxUART -> useKvmNestedVirt; # VirtualBox bug, see above
+
 with import ../lib/testing.nix { inherit system pkgs; };
 with pkgs.lib;
 
@@ -94,7 +111,7 @@ let
 
   testVM = vmName: vmScript: let
     cfg = (import ../lib/eval-config.nix {
-      system = "i686-linux";
+      system = if use64bitGuest then "x86_64-linux" else "i686-linux";
       modules = [
         ../modules/profiles/minimal.nix
         (testVMConfig vmName vmScript)
@@ -141,13 +158,15 @@ let
     sharePath = "/home/alice/vboxshare-${name}";
 
     createFlags = mkFlags [
-      "--ostype Linux26"
+      "--ostype ${if use64bitGuest then "Linux26_64" else "Linux26"}"
       "--register"
     ];
 
-    vmFlags = mkFlags ([
-      "--uart1 0x3F8 4"
-      "--uartmode1 client /run/virtualbox-log-${name}.sock"
+    vmFlags = mkFlags (
+      (optionals enableVBoxUART [
+        "--uart1 0x3F8 4"
+        "--uartmode1 client /run/virtualbox-log-${name}.sock"
+      ]) ++ [
       "--memory 768"
       "--audio none"
     ] ++ (attrs.vmFlags or []));
@@ -180,7 +199,7 @@ let
     ];
   in {
     machine = {
-      systemd.sockets."vboxtestlog-${name}" = {
+      systemd.sockets."vboxtestlog-${name}" = mkIf enableVBoxUART {
         description = "VirtualBox Test Machine Log Socket For ${name}";
         wantedBy = [ "sockets.target" ];
         before = [ "multi-user.target" ];
@@ -188,7 +207,7 @@ let
         socketConfig.Accept = true;
       };
 
-      systemd.services."vboxtestlog-${name}@" = {
+      systemd.services."vboxtestlog-${name}@" = mkIf enableVBoxUART {
         description = "VirtualBox Test Machine Log For ${name}";
         serviceConfig.StandardInput = "socket";
         serviceConfig.StandardOutput = "syslog";
@@ -346,6 +365,8 @@ let
         vmConfigs = mapAttrsToList mkVMConf vms;
       in [ ./common/user-account.nix ./common/x11.nix ] ++ vmConfigs;
       virtualisation.memorySize = 2048;
+      virtualisation.qemu.options =
+        if useKvmNestedVirt then ["-cpu" "kvm64,vmx=on"] else [];
       virtualisation.virtualbox.host.enable = true;
       services.xserver.displayManager.auto.user = "alice";
       users.users.alice.extraGroups = let
@@ -412,9 +433,14 @@ in mapAttrs (mkVBoxTest false vboxVMs) {
     );
     $machine->sleep(5);
     $machine->screenshot("gui_manager_started");
+    # Home to select Tools, down to move to the VM, enter to start it.
+    $machine->sendKeys("home");
+    $machine->sendKeys("down");
     $machine->sendKeys("ret");
     $machine->screenshot("gui_manager_sent_startup");
     waitForStartup_simple (sub {
+      $machine->sendKeys("home");
+      $machine->sendKeys("down");
       $machine->sendKeys("ret");
     });
     $machine->screenshot("gui_started");
diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index fd572a9f2eb..9011e15fae3 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -1,4 +1,4 @@
-{ config, stdenv, fetchurl, lib, fetchpatch, iasl, dev86, pam, libxslt, libxml2
+{ config, stdenv, fetchurl, lib, iasl, dev86, pam, libxslt, libxml2
 , libX11, xorgproto, libXext, libXcursor, libXmu, qt5, libIDL, SDL, libcap
 , libpng, glib, lvm2, libXrandr, libXinerama, libopus
 , pkgconfig, which, docbook_xsl, docbook_xml_dtd_43
@@ -21,8 +21,8 @@ let
   buildType = "release";
   # Remember to change the extpackRev and version in extpack.nix and
   # guest-additions/default.nix as well.
-  main = "0jmrbyhs92lyarpvylxqn2ajxdg9b290w5nd4g0i4h83d28bwbw0";
-  version = "5.2.28";
+  main = "0lp584a350ya1zn03lhgmdbi91yp8yfja9hlg2jz1xyfj2dc869l";
+  version = "6.0.6";
 in stdenv.mkDerivation {
   name = "virtualbox-${version}";
 
@@ -76,11 +76,12 @@ in stdenv.mkDerivation {
      optional enableHardening ./hardened.patch
   ++ [
     ./qtx11extras.patch
-    (fetchpatch {
-      name = "010-qt-5.11.patch";
-      url = "https://git.archlinux.org/svntogit/community.git/plain/trunk/010-qt-5.11.patch?h=packages/virtualbox";
-      sha256 = "0hjx99pg40wqyggnrpylrp5zngva4xrnk7r90i0ynrqc7n84g9pn";
-    })
+    # https://www.virtualbox.org/ticket/18620
+    ./fix_kbuild.patch
+    # https://www.virtualbox.org/ticket/18621
+    ./fix_module_makefile_sed.patch
+    # https://forums.virtualbox.org/viewtopic.php?f=7&t=92815
+    ./fix_printk_test.patch
   ];
 
   postPatch = ''
@@ -192,6 +193,6 @@ in stdenv.mkDerivation {
     license = licenses.gpl2;
     homepage = https://www.virtualbox.org/;
     maintainers = with maintainers; [ flokli sander ];
-    platforms = [ "x86_64-linux" "i686-linux" ];
+    platforms = [ "x86_64-linux" ];
   };
 }
diff --git a/pkgs/applications/virtualization/virtualbox/extpack.nix b/pkgs/applications/virtualization/virtualbox/extpack.nix
index 0e8a6eb25da..d26909ad79a 100644
--- a/pkgs/applications/virtualization/virtualbox/extpack.nix
+++ b/pkgs/applications/virtualization/virtualbox/extpack.nix
@@ -2,7 +2,7 @@
 
 with lib;
 
-let version = "5.2.28";
+let version = "6.0.6";
 in
 fetchurl rec {
   name = "Oracle_VM_VirtualBox_Extension_Pack-${version}.vbox-extpack";
@@ -10,7 +10,7 @@ fetchurl rec {
   sha256 =
     # Manually sha256sum the extensionPack file, must be hex!
     # Thus do not use `nix-prefetch-url` but instead plain old `sha256sum`.
-    let value = "376e07cbf2ff2844c95c800346c8e4697d7bc671ae0e21e46153b2e7b4ccc1d6";
+    let value = "794f023a186bd217c29c3d30bd1434b6e9de3b242c7bf740d06d10f2d3d981c6";
     in assert (builtins.stringLength value) == 64; value;
 
   meta = {
@@ -18,6 +18,6 @@ fetchurl rec {
     license = licenses.virtualbox-puel;
     homepage = https://www.virtualbox.org/;
     maintainers = with maintainers; [ flokli sander cdepillabout ];
-    platforms = [ "x86_64-linux" "i686-linux" ];
+    platforms = [ "x86_64-linux" ];
   };
 }
diff --git a/pkgs/applications/virtualization/virtualbox/fix_kbuild.patch b/pkgs/applications/virtualization/virtualbox/fix_kbuild.patch
new file mode 100644
index 00000000000..7cafeada7d9
--- /dev/null
+++ b/pkgs/applications/virtualization/virtualbox/fix_kbuild.patch
@@ -0,0 +1,12 @@
+diff -urN a/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile b/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile
+--- a/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile
++++ b/src/VBox/HostDrivers/VBoxNetAdp/linux/Makefile
+@@ -58,7 +58,7 @@
+ 	RT_WITH_VBOX \
+ 	VBOX_WITH_HARDENING \
+ 	VBOX_WITH_64_BITS_GUESTS # <-- must be consistent with Config.kmk!
+-VBOXMOD_CFLAGS = -include $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h -fno-pie -Wno-declaration-after-statement
++VBOXMOD_CFLAGS = -include $(VBOXNETADPT_DIR)include/VBox/SUPDrvMangling.h -fno-pie -Wno-declaration-after-statement
+ 
+ include $(obj)/Makefile-footer.gmk
+ 
diff --git a/pkgs/applications/virtualization/virtualbox/fix_module_makefile_sed.patch b/pkgs/applications/virtualization/virtualbox/fix_module_makefile_sed.patch
new file mode 100644
index 00000000000..6bfa5a4404b
--- /dev/null
+++ b/pkgs/applications/virtualization/virtualbox/fix_module_makefile_sed.patch
@@ -0,0 +1,36 @@
+diff -urN VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxNetAdp/Makefile.kmk VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxNetAdp/Makefile.kmk
+--- VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxNetAdp/Makefile.kmk	2019-04-16 12:16:38.000000000 +0200
++++ VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxNetAdp/Makefile.kmk	2019-05-04 15:19:14.545497602 +0200
+@@ -175,7 +175,7 @@
+ 		| $$(dir $$@)
+ 	$(QUIET)$(RM) -f -- $@
+  ifndef VBOX_WITH_HARDENING
+-	$(QUIET)$(SED) -e "s;-DVBOX_WITH_HARDENING;;g" --output $@ $<
++	$(QUIET)$(SED) -e "s;VBOX_WITH_HARDENING;;g" --output $@ $<
+  else
+ 	$(QUIET)$(CP) -f $< $@
+  endif
+diff -urN VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxNetFlt/Makefile.kmk VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxNetFlt/Makefile.kmk
+--- VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxNetFlt/Makefile.kmk	2019-04-16 12:16:39.000000000 +0200
++++ VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxNetFlt/Makefile.kmk	2019-05-04 15:19:13.809493324 +0200
+@@ -525,7 +525,7 @@
+ 		| $$(dir $$@)
+ 	$(QUIET)$(RM) -f -- $@
+  ifndef VBOX_WITH_HARDENING
+-	$(QUIET)$(SED) -e "s;-DVBOX_WITH_HARDENING;;g" --output $@ $<
++	$(QUIET)$(SED) -e "s;VBOX_WITH_HARDENING;;g" --output $@ $<
+  else
+ 	$(QUIET)$(CP) -f $< $@
+  endif
+diff -urN VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxPci/Makefile.kmk VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxPci/Makefile.kmk
+--- VirtualBox-6.0.6/src/VBox/HostDrivers/VBoxPci/Makefile.kmk	2019-04-16 12:16:40.000000000 +0200
++++ VirtualBox-6.0.6.new/src/VBox/HostDrivers/VBoxPci/Makefile.kmk	2019-05-04 15:42:12.029664987 +0200
+@@ -67,7 +67,7 @@
+ 		| $$(dir $$@)
+ 	$(QUIET)$(RM) -f -- $@
+  ifndef VBOX_WITH_HARDENING
+-	$(QUIET)$(SED) -e "s;-DVBOX_WITH_HARDENING;;g" --output $@ $<
++	$(QUIET)$(SED) -e "s;VBOX_WITH_HARDENING;;g" --output $@ $<
+  else
+ 	$(QUIET)$(CP) -f $< $@
+  endif
diff --git a/pkgs/applications/virtualization/virtualbox/fix_printk_test.patch b/pkgs/applications/virtualization/virtualbox/fix_printk_test.patch
new file mode 100644
index 00000000000..eceaff2dc61
--- /dev/null
+++ b/pkgs/applications/virtualization/virtualbox/fix_printk_test.patch
@@ -0,0 +1,14 @@
+diff -urN VirtualBox-6.0.6/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c VirtualBox-6.0.6.new/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c
+--- VirtualBox-6.0.6/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c	2019-04-16 12:16:37.000000000 +0200
++++ VirtualBox-6.0.6.new/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c	2019-05-04 15:59:44.439905223 +0200
+@@ -426,10 +426,8 @@
+     int                 rc;
+     PSUPDRVSESSION      pSession;
+     Log(("VBoxDrvLinuxCreate: pFilp=%p pid=%d/%d %s\n", pFilp, RTProcSelf(), current->pid, current->comm));
+-    printk("test1\n");
+ 
+ #ifdef VBOX_WITH_HARDENING
+-    printk("test2\n");
+     /*
+      * Only root is allowed to access the unrestricted device, enforce it!
+      */
diff --git a/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix b/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
index ecefc9bc07e..1a5c6c670c8 100644
--- a/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, lib, patchelf, cdrkit, kernel, which, makeWrapper
-, xorg, dbus, virtualbox }:
+, zlib, xorg, dbus, virtualbox }:
 
 let
   version = virtualbox.version;
@@ -19,32 +19,23 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "http://download.virtualbox.org/virtualbox/${version}/VBoxGuestAdditions_${version}.iso";
-    sha256 = "0cwdmdgcd1jysyw7c9b3cdk1ngk5nq7slh1zkhxkvvq142cnm1v9";
+    sha256 = "1srcsf9264l5yxbq2x83z66j38blbfrywq5lkzwb5kih6sv548c3";
   };
 
   KERN_DIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
   KERN_INCL = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/source/include";
 
-  patchFlags = [ "-p1" "-d" "install/src/vboxguest-${version}" ];
-
-  patches = [
-    ./fix_kerndir.patch
-    ./fix_kernincl.patch
-  ];
+  # If you add a patch you probably need this.
+  #patchFlags = [ "-p1" "-d" "install/src/vboxguest-${version}" ];
 
   hardeningDisable = [ "pic" ];
 
   NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types -Wno-error=implicit-function-declaration";
 
   nativeBuildInputs = [ patchelf makeWrapper ];
-  buildInputs = [ cdrkit dbus ] ++ kernel.moduleBuildDependencies;
+  buildInputs = [ cdrkit ] ++ kernel.moduleBuildDependencies;
 
-  installPhase = ''
-    mkdir -p $out
-    cp -r install/* $out
-  '';
-
-  buildCommand = with xorg; ''
+  unpackPhase = ''
     ${if stdenv.hostPlatform.system == "i686-linux" || stdenv.hostPlatform.system == "x86_64-linux" then ''
         isoinfo -J -i $src -x /VBoxLinuxAdditions.run > ./VBoxLinuxAdditions.run
         chmod 755 ./VBoxLinuxAdditions.run
@@ -63,39 +54,30 @@ stdenv.mkDerivation {
       ''
       else throw ("Architecture: "+stdenv.hostPlatform.system+" not supported for VirtualBox guest additions")
     }
+  '';
 
-    cd ../
-    patchPhase
-    cd install/src
-
-    # Build kernel modules
-    export INSTALL_MOD_PATH=$out
+  doConfigure = false;
 
+  buildPhase = ''
+    # Build kernel modules.
+    cd src
     find . -type f | xargs sed 's/depmod -a/true/' -i
-
     cd vboxguest-${version}
-
+    # Run just make first. If we only did make install, we get symbol warnings during build.
     make
-
     cd ../..
 
     # Change the interpreter for various binaries
-    for i in sbin/VBoxService bin/{VBoxClient,VBoxControl} other/mount.vboxsf
-    do
-        ${if stdenv.hostPlatform.system == "i686-linux" then ''
-          patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux.so.2 $i
-        ''
-        else if stdenv.hostPlatform.system == "x86_64-linux" then ''
-          patchelf --set-interpreter ${stdenv.glibc.out}/lib/ld-linux-x86-64.so.2 $i
-        ''
-        else throw ("Architecture: "+stdenv.hostPlatform.system+" not supported for VirtualBox guest additions")
-        }
-        patchelf --set-rpath ${lib.makeLibraryPath [ stdenv.cc.cc dbus libX11 libXt libXext libXmu libXfixes libXrandr libXcursor ]} $i
+    for i in sbin/VBoxService bin/{VBoxClient,VBoxControl} other/mount.vboxsf; do
+        patchelf --set-interpreter ${stdenv.cc.bintools.dynamicLinker} $i
+        patchelf --set-rpath ${lib.makeLibraryPath [ stdenv.cc.cc stdenv.cc.libc zlib
+          xorg.libX11 xorg.libXt xorg.libXext xorg.libXmu xorg.libXfixes xorg.libXrandr xorg.libXcursor ]} $i
     done
 
     for i in lib/VBoxOGL*.so
     do
-        patchelf --set-rpath ${lib.makeLibraryPath [ "$out" dbus libXcomposite libXdamage libXext libXfixes ]} $i
+        patchelf --set-rpath ${lib.makeLibraryPath [ "$out"
+          xorg.libXcomposite xorg.libXdamage xorg.libXext xorg.libXfixes ]} $i
     done
 
     # FIXME: Virtualbox 4.3.22 moved VBoxClient-all (required by Guest Additions
@@ -105,6 +87,13 @@ stdenv.mkDerivation {
     # Remove references to /usr from various scripts and files
     sed -i -e "s|/usr/bin|$out/bin|" other/vboxclient.desktop
     sed -i -e "s|/usr/bin|$out/bin|" bin/VBoxClient-all
+  '';
+
+  installPhase = ''
+    # Install kernel modules.
+    cd src/vboxguest-${version}
+    make install INSTALL_MOD_PATH=$out
+    cd ../..
 
     # Install binaries
     install -D -m 755 other/mount.vboxsf $out/bin/mount.vboxsf
@@ -131,21 +120,18 @@ stdenv.mkDerivation {
     # Install Xorg drivers
     mkdir -p $out/lib/xorg/modules/{drivers,input}
     install -m 644 other/vboxvideo_drv_${xserverABI}.so $out/lib/xorg/modules/drivers/vboxvideo_drv.so
+  '';
 
-    # Install kernel modules
-    cd src
+  # Stripping breaks these binaries for some reason.
+  dontStrip = true;
 
-    for i in *
-    do
-        cd $i
-        kernelVersion=$(cd ${kernel.dev}/lib/modules; ls)
-        export MODULE_DIR=$out/lib/modules/$kernelVersion/misc
-        find . -type f | xargs sed -i -e "s|-o root||g" \
-                                      -e "s|-g root||g"
-        make install
-        cd ..
+  # Some code dlopen() libdbus, patch RUNPATH in fixupPhase so it isn't stripped.
+  postFixup = ''
+    for i in $(grep -F libdbus-1.so -l -r $out/{lib,bin}); do
+      origRpath=$(patchelf --print-rpath "$i")
+      patchelf --set-rpath "$origRpath:${lib.makeLibraryPath [ dbus ]}" "$i"
     done
-  ''; # */
+  '';
 
   meta = {
     description = "Guest additions for VirtualBox";
diff --git a/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kerndir.patch b/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kerndir.patch
deleted file mode 100644
index 0be949f63c9..00000000000
--- a/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kerndir.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-diff --git a/vboxsf/Makefile.include.header b/vboxsf/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxsf/Makefile.include.header
-+++ b/vboxsf/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
-
-diff --git a/vboxguest/Makefile.include.header b/vboxguest/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxguest/Makefile.include.header
-+++ b/vboxguest/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
-
-diff --git a/vboxvideo/Makefile.include.header b/vboxvideo/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxvideo/Makefile.include.header
-+++ b/vboxvideo/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
diff --git a/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kernincl.patch b/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kernincl.patch
deleted file mode 100644
index e59e2e98c1b..00000000000
--- a/pkgs/applications/virtualization/virtualbox/guest-additions/fix_kernincl.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff --git a/vboxvideo/Makefile.include.header b/vboxvideo/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxvideo/Makefile.include.header
-+++ b/vboxvideo/Makefile.include.header
-@@ -122,7 +122,6 @@ ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-           Specify KERN_VER=<version> and run Make again)
- endif
- # Kernel include folder
--KERN_INCL := $(KERN_DIR)/include
- # module install folder
- INSTALL_MOD_DIR ?= misc
- MODULE_DIR := $(INSTALL_MOD_PATH)/lib/modules/$(KERN_VER)/$(INSTALL_MOD_DIR)
diff --git a/pkgs/applications/virtualization/virtualbox/qtx11extras.patch b/pkgs/applications/virtualization/virtualbox/qtx11extras.patch
index 6ed74e3e23e..a3aa98b081d 100644
--- a/pkgs/applications/virtualization/virtualbox/qtx11extras.patch
+++ b/pkgs/applications/virtualization/virtualbox/qtx11extras.patch
@@ -2,30 +2,15 @@ diff --git a/kBuild/units/qt5.kmk b/kBuild/units/qt5.kmk
 index 71b96a3..73391f0 100644
 --- a/kBuild/units/qt5.kmk
 +++ b/kBuild/units/qt5.kmk
-@@ -1019,9 +1019,10 @@ else
+@@ -1054,9 +1054,9 @@ else
     $(eval $(target)_LIBS   += $(PATH_SDK_QT5_LIB)/$(qt_prefix)qtmain$(qt_infix)$(SUFF_LIB) )
    endif
   else
 -  $(eval $(target)_LIBS    += $(foreach module,$(qt_modules), $(PATH_SDK_QT5_LIB)/lib$(qt_prefix)Qt5$(module)$(qt_infix)$(SUFF_DLL)) )
-+  $(eval $(target)_LIBS    += $(foreach module,$(qt_modules), $(PATH_SDK_QT5_LIB)/lib$(qt_prefix)Qt5$(module)$(qt_infix)$(SUFF_DLL)) \
-+                              $(PATH_QT5_X11_EXTRAS_LIB)/lib$(qt_prefix)Qt5X11Extras$(qt_infix)$(SUFF_DLL))
++  $(eval $(target)_LIBS    += $(foreach module,$(qt_modules), $(if $(filter X11Extras,$(module)),$(PATH_QT5_X11_EXTRAS_LIB),$(PATH_SDK_QT5_LIB))/lib$(qt_prefix)Qt5$(module)$(qt_infix)$(SUFF_DLL)) )
   endif
 - $(eval $(target)_INCS     += $(addprefix $(PATH_SDK_QT5_INC)/Qt,$(qt_modules)) $(PATH_SDK_QT5_INC) )
 + $(eval $(target)_INCS     += $(addprefix $(PATH_SDK_QT5_INC)/Qt,$(qt_modules)) $(PATH_SDK_QT5_INC) $(PATH_QT5_X11_EXTRAS_INC)/QtX11Extras )
  endif
  $(eval $(target)_DEFS      += $(foreach module,$(toupper $(qt_modules)), QT_$(module)_LIB) )
 
-diff --git a/src/VBox/Frontends/VirtualBox/Makefile.kmk b/src/VBox/Frontends/VirtualBox/Makefile.kmk
-index 3295bfefe7..796370623c 100644
---- a/src/VBox/Frontends/VirtualBox/Makefile.kmk
-+++ b/src/VBox/Frontends/VirtualBox/Makefile.kmk
-@@ -916,9 +916,6 @@ endif
- # The Qt modules we're using.
- # (The include directory and lib/framework for each module will be added by the Qt unit.)
- VirtualBox_QT_MODULES = Core Gui Widgets PrintSupport
--VirtualBox_QT_MODULES.linux   += X11Extras
--VirtualBox_QT_MODULES.solaris += X11Extras
--VirtualBox_QT_MODULES.freebsd += X11Extras
- VirtualBox_QT_MODULES.darwin  += MacExtras
- VirtualBox_QT_MODULES.win     += WinExtras
- if defined(VBOX_WITH_VIDEOHWACCEL) || defined(VBOX_GUI_USE_QGL)
diff --git a/pkgs/os-specific/linux/virtualbox/default.nix b/pkgs/os-specific/linux/virtualbox/default.nix
index 9e2dee099ce..f2fd4d4a61a 100644
--- a/pkgs/os-specific/linux/virtualbox/default.nix
+++ b/pkgs/os-specific/linux/virtualbox/default.nix
@@ -9,13 +9,7 @@ stdenv.mkDerivation {
 
   nativeBuildInputs = kernel.moduleBuildDependencies;
 
-  patches = [
-    ./fix_kerndir.patch
-    ./fix_kbuild.patch
-  ];
-
   KERN_DIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}/build";
-  INCLUDE_BASE = "${virtualbox.modsrc}";
 
   makeFlags = [
     "-C ${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
diff --git a/pkgs/os-specific/linux/virtualbox/fix_kbuild.patch b/pkgs/os-specific/linux/virtualbox/fix_kbuild.patch
deleted file mode 100644
index 242a905c1a0..00000000000
--- a/pkgs/os-specific/linux/virtualbox/fix_kbuild.patch
+++ /dev/null
@@ -1,85 +0,0 @@
-diff --git a/vboxdrv/Makefile b/vboxdrv/Makefile
-index e262c61..4af8dac 100644
---- a/vboxdrv/Makefile
-+++ b/vboxdrv/Makefile
-@@ -131,7 +131,7 @@ ifdef VBOX_WITH_NATIVE_DTRACE
-  MOD_OBJS += SUPDrvDTrace.o
- endif
-
--MOD_INCL  = $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
-+MOD_INCL  = $(addprefix -I$(INCLUDE_BASE)/$(MOD_NAME),/ /include /r0drv/linux)
- ifdef VBOX_WITH_NATIVE_DTRACE
-  MOD_INCL += -I/usr/include/linux -I/usr/include
- endif
-@@ -157,7 +157,7 @@ ifdef VBOX_WITH_TEXT_MODMEM_HACK
- endif
-
- # build defs
--MOD_CFLAGS = -include $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h \
-+MOD_CFLAGS = -include include/VBox/SUPDrvMangling.h \
-	-fno-omit-frame-pointer -fno-pie
-
- include $(obj)/Makefile.include.footer
-diff --git a/vboxnetadp/Makefile b/vboxnetadp/Makefile
-index e262c61..4af8dac 100644
---- a/vboxnetadp/Makefile
-+++ b/vboxnetadp/Makefile
-@@ -34,7 +34,7 @@ MOD_OBJS += math/gcc/divdi3.o \
-	math/gcc/umoddi3.o
- endif
-
--MOD_INCL = $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
-+MOD_INCL = $(addprefix -I$(INCLUDE_BASE)/$(MOD_NAME),/ /include /r0drv/linux)
- MOD_DEFS = -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX \
-	    -DRT_WITH_VBOX -DVBOX_WITH_HARDENING \
-	    -Wno-declaration-after-statement
-@@ -59,6 +59,6 @@ ifdef VBOX_USE_INSERT_PAGE
- endif
-
- # build defs
--MOD_CFLAGS = -include $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h -fno-pie
-+MOD_CFLAGS = -include include/VBox/SUPDrvMangling.h -fno-pie
-
- include $(obj)/Makefile.include.footer
-diff --git a/vboxnetflt/Makefile b/vboxnetflt/Makefile
-index e262c61..4af8dac 100644
---- a/vboxnetflt/Makefile
-+++ b/vboxnetflt/Makefile
-@@ -38,7 +38,7 @@ MOD_OBJS += math/gcc/divdi3.o \
-	math/gcc/umoddi3.o
- endif
-
--MOD_INCL = $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
-+MOD_INCL = $(addprefix -I$(INCLUDE_BASE)/$(MOD_NAME),/ /include /r0drv/linux)
- MOD_DEFS = -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 \
-	-DIN_SUP_R0 -DVBOX -DRT_WITH_VBOX -DVBOX_WITH_HARDENING \
-	-Wno-declaration-after-statement
-@@ -63,6 +63,6 @@ ifdef VBOX_USE_INSERT_PAGE
- endif
-
- # build defs
--MOD_CFLAGS = -include $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h -fno-pie
-+MOD_CFLAGS = -include include/VBox/SUPDrvMangling.h -fno-pie
-
- include $(obj)/Makefile.include.footer
-diff --git a/vboxpci/Makefile b/vboxpci/Makefile
-index e262c61..4af8dac 100644
---- a/vboxpci/Makefile
-+++ b/vboxpci/Makefile
-@@ -38,7 +38,7 @@ MOD_OBJS += math/gcc/divdi3.o       \
-	math/gcc/umoddi3.o
- endif
-
--MOD_INCL = $(addprefix -I$(KBUILD_EXTMOD),/ /include /r0drv/linux)
-+MOD_INCL = $(addprefix -I$(INCLUDE_BASE)/$(MOD_NAME),/ /include /r0drv/linux)
- MOD_DEFS = -DRT_OS_LINUX -DIN_RING0 -DIN_RT_R0 -DIN_SUP_R0 -DVBOX \
-	-DRT_WITH_VBOX -DVBOX_WITH_HARDENING
- ifeq ($(BUILD_TARGET_ARCH),amd64)
-@@ -60,6 +60,6 @@ ifdef VBOX_USE_INSERT_PAGE
- endif
-
- # build defs
--MOD_CFLAGS = -include $(KBUILD_EXTMOD)/include/VBox/SUPDrvMangling.h -fno-pie
-+MOD_CFLAGS = -include include/VBox/SUPDrvMangling.h -fno-pie
-
- include $(obj)/Makefile.include.footer
diff --git a/pkgs/os-specific/linux/virtualbox/fix_kerndir.patch b/pkgs/os-specific/linux/virtualbox/fix_kerndir.patch
deleted file mode 100644
index 70ddbbb2ebd..00000000000
--- a/pkgs/os-specific/linux/virtualbox/fix_kerndir.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-diff --git a/vboxdrv/Makefile.include.header b/vboxdrv/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxdrv/Makefile.include.header
-+++ b/vboxdrv/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
-diff --git a/vboxnetadp/Makefile.include.header b/vboxnetadp/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxnetadp/Makefile.include.header
-+++ b/vboxnetadp/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
-diff --git a/vboxnetflt/Makefile.include.header b/vboxnetflt/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxnetflt/Makefile.include.header
-+++ b/vboxnetflt/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)
-diff --git a/vboxpci/Makefile.include.header b/vboxpci/Makefile.include.header
-index 8df1eb4d25..5a3e5604e7 100644
---- a/vboxpci/Makefile.include.header
-+++ b/vboxpci/Makefile.include.header
-@@ -117,7 +117,6 @@ else # neq($(KERNELRELEASE),)
- endif # neq($(KERNELRELEASE),)
-
- # Kernel build folder
--KERN_DIR := /lib/modules/$(KERN_VER)/build
- ifneq ($(shell if test -d $(KERN_DIR); then echo yes; fi),yes)
-  $(error Error: unable to find the headers of the Linux kernel to build against. \
-           Specify KERN_VER=<version> and run Make again)