diff --git a/020_dell-bios-update.sh b/020_dell-bios-update.sh
new file mode 100644
index 0000000..191f688
--- /dev/null
+++ b/020_dell-bios-update.sh
@@ -0,0 +1,31 @@
+
+cd /tmp
+
+git clone http://github.com/dell/biosdisk
+
+cd biosdisk
+# dch -i --create
+
+cat > debian/changelog <<EOF
+biosdisk (1.0) UNRELEASED; urgency=medium
+
+  * Initial release. 
+
+ -- MAINTAINER <default@devuan>  Tue, 22 Dec 2020 14:51:23 +0000
+EOF
+
+dpkg-buildpackage -us -uc -b
+sudo dpkg -i ../biosdisk_1.0_all.deb
+
+wget -c https://dl.dell.com/bios/M4300A15.EXE
+# wget -c https://dl.dell.com/FOLDER06318034M/1/M4300A17.exe
+
+sudo biosdisk install ./M4300A15.EXE
+
+sudo mkdir -p /boot/images
+
+sudo cp /boot/M4300A15.iso /boot/images
+
+sudo biosdisk uninstall ./M4300A15.EXE
+
+sudo apt-get install -y grub-imageboot
diff --git a/020_pulseview.sh b/020_pulseview.sh
index b05aee6..fafe085 100644
--- a/020_pulseview.sh
+++ b/020_pulseview.sh
@@ -3,6 +3,9 @@
 # 
 sudo apt-get install -y pulseview sigrok-firmware-fx2lafw fxload cycfx2prog
 
+# for commandline interaction and listing of supported devices etc.
+sudo apt-get install -y sigrok-cli
+
 sudo wget -O /etc/udev/rules.d/60-libsigrok.rules https://raw.githubusercontent.com/sigrokproject/libsigrok/master/contrib/60-libsigrok.rules
 sudo wget -O /etc/udev/rules.d/61-libsigrok-plugdev.rules https://raw.githubusercontent.com/sigrokproject/libsigrok/master/contrib/61-libsigrok-plugdev.rules