diff --git a/kernel-qemu-4.14.79-stretch b/kernel-qemu-4.14.79-stretch
index ab01d5c..c663dd2 100644
Binary files a/kernel-qemu-4.14.79-stretch and b/kernel-qemu-4.14.79-stretch differ
diff --git a/kernel-qemu-4.19.50-buster b/kernel-qemu-4.19.50-buster
index 60d3277..a7fd08f 100755
Binary files a/kernel-qemu-4.19.50-buster and b/kernel-qemu-4.19.50-buster differ
diff --git a/tools/.gitignore b/tools/.gitignore
index 7b429b0..e4a56f3 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -1,2 +1,4 @@
-linux
-build-kernel-qemu.conf
+/linux
+/build-kernel-qemu.conf
+/qemu-kernel-*
+/versatile-pb.dtb
diff --git a/tools/build-kernel-qemu b/tools/build-kernel-qemu
index 9a9a1bb..f9d2f88 100755
--- a/tools/build-kernel-qemu
+++ b/tools/build-kernel-qemu
@@ -22,7 +22,7 @@ fi
 
 if [ "$INSTALL_PACKAGES" ] ; then
 	sudo apt-get update
-	sudo apt-get install git libncurses5-dev gcc-arm-linux-gnueabihf
+	sudo apt-get install git libncurses5-dev gcc-arm-linux-gnueabihf flex bison
 fi
 
 mkdir -p $BUILD_DIR $TARGET_DIR
@@ -41,6 +41,8 @@ if [ "$USE_GIT" ] ; then
 	fi
 	cd linux
 	if [ "$COMMIT" ] ; then
+		git reset --hard
+		git clean -xdf
 		git checkout "$COMMIT"
 	fi
 else
@@ -85,6 +87,7 @@ if [ $USB_WEBCAM_MODULES ] ; then
 fi
 
 cat $SOURCE_DIR/config_ip_tables >> .config
+cat $SOURCE_DIR/config_loopdev >> .config
 
 make -k ARCH=arm CROSS_COMPILE=${TOOLCHAIN}- $KERNEL_MAKE_CONFIG
 make -k ARCH=arm CROSS_COMPILE=${TOOLCHAIN}- bzImage dtbs
diff --git a/tools/build-kernel-qemu.conf-4.14.79 b/tools/build-kernel-qemu.conf-4.14.79
new file mode 100644
index 0000000..76dc9ec
--- /dev/null
+++ b/tools/build-kernel-qemu.conf-4.14.79
@@ -0,0 +1,2 @@
+INSTALL_PACKAGES=true
+COMMIT=raspberrypi-kernel_1.20181112-1
diff --git a/tools/config_loopdev b/tools/config_loopdev
new file mode 100644
index 0000000..0382864
--- /dev/null
+++ b/tools/config_loopdev
@@ -0,0 +1,8 @@
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
+
+CONFIG_MD=y
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=y
+CONFIG_CRYPTO_AES=y
+CONFIG_CRYPTO_XTS=y
diff --git a/tools/qemu-kernel-4.19.50 b/tools/qemu-kernel-4.19.50
deleted file mode 100755
index 60d3277..0000000
Binary files a/tools/qemu-kernel-4.19.50 and /dev/null differ
diff --git a/tools/versatile-pb.dtb b/tools/versatile-pb.dtb
deleted file mode 100644
index 1ec16f5..0000000
Binary files a/tools/versatile-pb.dtb and /dev/null differ