diff --git a/kvm.sh b/kvm.sh
index dc6271e..5281018 100755
--- a/kvm.sh
+++ b/kvm.sh
@@ -1 +1,10 @@
-sudo kvm -hda /dev/sda -hdb /dev/sdb -hdc /dev/sdc -hdd /dev/sdd -m 10G -cpu host -smp cpus=1,cores=4,threads=1,maxcpus=4 -k de -soundhw all #-device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on
+if [ $# -eq 0 ]; then
+	echo "chose blockdevice: "
+	lsblk -o NAME,SIZE,TYPE,MOUNTPOINT
+	echo "enter devicename"
+	read "device"
+	echo "using: $device"
+else
+	device="$1"
+fi
+QEMU_AUDIO_DRV=pa sudo kvm -drive file=$device,media=disk,cache=writeback,index=0,aio=threads,format=raw -m 12G -cpu host -smp cores=8,threads=1,sockets=1 -k de -vga std -display gtk -runas $USER -soundhw all #-device vfio-pci,host=01:00.0,bus=root.1,addr=00.0,multifunction=on,x-vga=on