diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 1311b506..986386e6 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -11,4 +11,4 @@ jobs:
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master
 env:
-        SHELLCHECK_OPTS: -x -e SC2001 -e SC2002 -e SC2223 -e SC2034 -e SC2064 -e SC2317 -e SC2028
+        SHELLCHECK_OPTS: -x -e SC2001 -e SC2002 -e SC2223 -e SC2034 -e SC2064 -e SC2317 -e SC2028 -e SC2153
diff --git a/Dockerfile b/Dockerfile
index b98e74ab..8d0b7bf1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,6 +16,7 @@ RUN apt-get update && apt-get -y upgrade && \
     apt-get --no-install-recommends -y install \
         curl \
         cpio \
+        tini \
         wget \
         fdisk \
         unzip \
@@ -64,4 +65,4 @@ LABEL org.opencontainers.image.url=https://hub.docker.com/r/kroese/virtual-dsm/
 
 HEALTHCHECK --interval=60s --retries=2 CMD /run/check.sh
 
-ENTRYPOINT ["/run/run.sh"]
+ENTRYPOINT ["/usr/bin/tini", "-s", "/run/run.sh"]
diff --git a/readme.md b/readme.md
index d5507194..5ae28cfb 100644
--- a/readme.md
+++ b/readme.md
@@ -181,8 +181,6 @@ docker run -it --rm -p 5000:5000 --device=/dev/kvm --cap-add NET_ADMIN --stop-ti
         - /dev/dri
     ```
     
-    As the Intel GPU drivers will be downloaded during installation, you need to re-install DSM when you want to apply this to an existing instance.
-    
   * ### What are the differences compared to the standard DSM?
 
     There are only two minor differences: the Virtual Machine Manager package is not provided, and Surveillance Station doesn't include any free licenses.
diff --git a/run/disk.sh b/run/disk.sh
index 404835c4..e61eb887 100644
--- a/run/disk.sh
+++ b/run/disk.sh
@@ -153,3 +153,27 @@ DISK_OPTS="\
     -device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xc \
     -drive file=${DATA},if=none,id=drive-userdata,format=raw,cache=${DISK_CACHE},aio=${DISK_IO},discard=${DISK_DISCARD},detect-zeroes=on \
     -device scsi-hd,bus=hw-userdata.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata,id=userdata0,rotation_rate=${DISK_ROTATION},bootindex=3"
+
+STORAGE2="/storage2"
+DATA2="${STORAGE2}/data.img"
+
+if [ -f "${DATA2}" ]; then
+
+  DISK_OPTS="${DISK_OPTS} \
+    -device virtio-scsi-pci,id=hw-userdata2,bus=pcie.0,addr=0xd \
+    -drive file=${DATA2},if=none,id=drive-userdata2,format=raw,cache=${DISK_CACHE},aio=${DISK_IO},discard=${DISK_DISCARD},detect-zeroes=on \
+    -device scsi-hd,bus=hw-userdata2.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata2,id=userdata2,rotation_rate=${DISK_ROTATION},bootindex=4"
+
+fi
+
+STORAGE3="/storage3"
+DATA3="${STORAGE3}/data.img"
+
+if [ -f "${DATA3}" ]; then
+
+  DISK_OPTS="${DISK_OPTS} \
+    -device virtio-scsi-pci,id=hw-userdata3,bus=pcie.0,addr=0xe \
+    -drive file=${DATA3},if=none,id=drive-userdata3,format=raw,cache=${DISK_CACHE},aio=${DISK_IO},discard=${DISK_DISCARD},detect-zeroes=on \
+    -device scsi-hd,bus=hw-userdata3.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata3,id=userdata3,rotation_rate=${DISK_ROTATION},bootindex=5"
+
+fi
diff --git a/run/gpu.sh b/run/gpu.sh
new file mode 100644
index 00000000..c3e86750
--- /dev/null
+++ b/run/gpu.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+set -Eeuo pipefail
+
+[ ! -d /dev/dri ] && mkdir -m 755 /dev/dri
+
+if [ ! -c /dev/dri/card0 ]; then
+  mknod /dev/dri/card0 c 226 0
+fi
+
+if [ ! -c /dev/dri/renderD128 ]; then
+  mknod /dev/dri/renderD128 c 226 128
+fi
+
+chmod 666 /dev/dri/card0
+chmod 666 /dev/dri/renderD128
+
+DEF_OPTS="-nodefaults -boot strict=on -display egl-headless,rendernode=/dev/dri/renderD128"
+DEF_OPTS="${DEF_OPTS} -device virtio-vga,id=video0,max_outputs=1,bus=pcie.0,addr=0x1"
+
+if ! apt-mark showinstall | grep -q "xserver-xorg-video-intel"; then
+
+  info "Installing GPU drivers..."
+
+  export DEBCONF_NOWARNINGS="yes"
+  export DEBIAN_FRONTEND="noninteractive"
+
+  apt-get -qq update
+  apt-get -qq --no-install-recommends -y install xserver-xorg-video-intel > /dev/null
+
+fi
diff --git a/run/install.sh b/run/install.sh
index e15bb2c5..7db83b0c 100644
--- a/run/install.sh
+++ b/run/install.sh
@@ -134,24 +134,15 @@ if { tar tf "$PAT"; } >/dev/null 2>&1; then
 
 else
 
-  export DEBCONF_NOWARNINGS="yes"
-  export DEBIAN_FRONTEND="noninteractive"
-
   if [ "$ARCH" != "amd64" ]; then
 
     info "Install: Installing QEMU..."
 
-    apt-get -qq update && apt-get -qq -y upgrade
-    apt-get -qq --no-install-recommends -y install qemu-user > /dev/null
-
-  fi
+    export DEBCONF_NOWARNINGS="yes"
+    export DEBIAN_FRONTEND="noninteractive"
 
-  if [[ "${GPU}" == [Yy1]* ]] && [[ "$ARCH" == "amd64" ]]; then
-
-    info "Install: Installing GPU drivers..."
-
-    apt-get -qq update && apt-get -qq -y upgrade
-    apt-get -qq --no-install-recommends -y install xserver-xorg-video-intel > /dev/null
+    apt-get -qq update
+    apt-get -qq --no-install-recommends -y install qemu-user > /dev/null
 
   fi
 
@@ -213,14 +204,14 @@ SIZE=$(stat -c%s "${SYSTEM}")
 
 PART="$TMP/partition.fdisk"
 
-{	echo "label: dos"
-	echo "label-id: 0x6f9ee2e9"
-	echo "device: ${SYSTEM}"
-	echo "unit: sectors"
-	echo "sector-size: 512"
-	echo ""
-	echo "${SYSTEM}1 : start=        2048, size=     4980480, type=83"
-	echo "${SYSTEM}2 : start=     4982528, size=     4194304, type=82"
+{       echo "label: dos"
+        echo "label-id: 0x6f9ee2e9"
+        echo "device: ${SYSTEM}"
+        echo "unit: sectors"
+        echo "sector-size: 512"
+        echo ""
+        echo "${SYSTEM}1 : start=        2048, size=     4980480, type=83"
+        echo "${SYSTEM}2 : start=     4982528, size=     4194304, type=82"
 } > "$PART"
 
 sfdisk -q "$SYSTEM" < "$PART"
diff --git a/run/run.sh b/run/run.sh
index adc664c0..7094fec9 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -4,8 +4,8 @@ set -Eeuo pipefail
 # Docker environment variables
 
 : ${URL:=''}            # URL of the PAT file
-: ${GPU:='N'}         # Enable GPU passthrough
-: ${DEBUG:='N'}         # Enable debug mode
+: ${GPU:='N'}           # Enable GPU passthrough
+: ${DEBUG:='N'}         # Enable debugging mode
 : ${ALLOCATE:='Y'}      # Preallocate diskspace
 : ${ARGUMENTS:=''}      # Extra QEMU parameters
 : ${CPU_CORES:='1'}     # Amount of CPU cores
@@ -42,17 +42,10 @@ if [[ ! -f "$STORAGE/$BASE.boot.img" ]] || [[ ! -f "$STORAGE/$BASE.system.img" ]
   . /run/install.sh
 fi
 
-# Initialize disks
-. /run/disk.sh
-
-# Initialize network
-. /run/network.sh
-
-# Initialize serialport
-. /run/serial.sh
-
-# Configure shutdown
-. /run/power.sh
+. /run/disk.sh     # Initialize disks
+. /run/network.sh  # Initialize network
+. /run/serial.sh   # Initialize serialport
+. /run/power.sh    # Configure shutdown
 
 KVM_ERR=""
 KVM_OPTS=""
@@ -82,10 +75,7 @@ EXTRA_OPTS="-device virtio-balloon-pci,id=balloon0,bus=pcie.0,addr=0x4"
 EXTRA_OPTS="$EXTRA_OPTS -object rng-random,id=objrng0,filename=/dev/urandom"
 EXTRA_OPTS="$EXTRA_OPTS -device virtio-rng-pci,rng=objrng0,id=rng0,bus=pcie.0,addr=0x1c"
 
-if [[ "${GPU}" == [Yy1]* ]]; then
-  DEF_OPTS="-nodefaults -boot strict=on -display egl-headless,rendernode=/dev/dri/renderD128"
-  DEF_OPTS="${DEF_OPTS} -device virtio-vga,id=video0,max_outputs=1,bus=pcie.0,addr=0x1"
-fi
+[[ "${GPU}" == [Yy1]* ]] && [[ "$ARCH" == "amd64" ]] && . /run/gpu.sh
 
 ARGS="${DEF_OPTS} ${CPU_OPTS} ${RAM_OPTS} ${MAC_OPTS} ${MON_OPTS} ${SERIAL_OPTS} ${NET_OPTS} ${DISK_OPTS} ${EXTRA_OPTS} ${ARGUMENTS}"
 ARGS=$(echo "$ARGS" | sed 's/\t/ /g' | tr -s ' ')
diff --git a/run/serial.sh b/run/serial.sh
index 5d999bd8..4d715160 100644
--- a/run/serial.sh
+++ b/run/serial.sh
@@ -52,8 +52,8 @@ fi
 
 SERIAL_OPTS="\
 	-serial mon:stdio \
-	-device virtio-serial-pci,id=virtio-serial0,bus=pcie.0,addr=0x3 \
-	-chardev pty,id=charserial0 \
-	-device isa-serial,chardev=charserial0,id=serial0 \
-	-chardev socket,id=charchannel0,host=127.0.0.1,port=12345,reconnect=10 \
-	-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=vchannel"
+        -device virtio-serial-pci,id=virtio-serial0,bus=pcie.0,addr=0x3 \
+        -chardev pty,id=charserial0 \
+        -device isa-serial,chardev=charserial0,id=serial0 \
+        -chardev socket,id=charchannel0,host=127.0.0.1,port=12345,reconnect=10 \
+        -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=vchannel"