diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a207cc7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+chroot
+staging
+temp
diff --git a/debian-custom.iso b/debian-custom.iso
new file mode 100644
index 0000000..58b7d0e
Binary files /dev/null and b/debian-custom.iso differ
diff --git a/make_iso.sh b/make_iso.sh
new file mode 100755
index 0000000..771eaff
--- /dev/null
+++ b/make_iso.sh
@@ -0,0 +1,234 @@
+# Install applications needed to build the live environment.
+sudo apt-get install \
+    debootstrap \
+    squashfs-tools \
+    xorriso \
+    isolinux \
+    syslinux-efi \
+    grub-pc-bin \
+    grub-efi-amd64-bin \
+    grub-efi-ia32-bin \
+    mtools \
+    dosfstools
+    
+ # Create a directory where we will store all of the files we create throughout this guide. 
+ mkdir -p "${HOME}/LIVE_BOOT"
+ 
+ # Set up the base Debian environment.
+ # Consult the list of debian mirrors. 
+ # https://www.debian.org/mirror/list
+ # Please change the URL in this command if there is a mirror that is closer to you.
+ # We will use stable for this distribution and amd64 for the architecture.
+ sudo debootstrap \
+    --arch=amd64 \
+    --variant=minbase \
+    stable \
+    "${HOME}/LIVE_BOOT/chroot" \
+    http://ftp.us.debian.org/debian/
+
+# Set a custom hostname for your Debian environment.
+echo "debian-live" | sudo tee "${HOME}/LIVE_BOOT/chroot/etc/hostname"
+
+# Install a Linux kernel of your choosing. 
+# The image linux-image-amd64 is chosen here. 
+# live-boot is a necessity. 
+# systemd-sys (or an equivalent) is also necessary to provide init. 
+
+sudo chroot "${HOME}/LIVE_BOOT/chroot" << EOF
+apt-get update && \
+apt-get install -y --no-install-recommends \
+    linux-image-amd64 \
+    live-boot \
+    systemd-sysv
+EOF
+
+# Install programs of your choosing, and then run apt-get clean to save some space. 
+# I use --no-install-recommends to avoid superfluous packages. 
+# You should decide what you need for your environment. 
+
+sudo chroot "${HOME}/LIVE_BOOT/chroot" << EOF
+apt-get install -y --no-install-recommends \
+    iwd \
+    curl openssh-client \
+    openbox xserver-xorg-core xserver-xorg xinit xterm \
+    wget iputils-ping \
+    nano
+EOF
+
+#  Set the root password. 
+# root will be the only user in this live environment by default, 
+# but you may add additional users as needed. 
+
+sudo chroot "${HOME}/LIVE_BOOT/chroot" passwd root
+
+# Create directories that will contain files for our live environment files and scratch files. 
+
+mkdir -p "${HOME}/LIVE_BOOT"/{staging/{EFI/BOOT,boot/grub/x86_64-efi,isolinux,live},tmp}
+
+# Compress the chroot environment into a Squash filesystem.
+sudo mksquashfs \
+    "${HOME}/LIVE_BOOT/chroot" \
+    "${HOME}/LIVE_BOOT/staging/live/filesystem.squashfs" \
+    -e boot
+
+# Copy the kernel and initramfs from inside the chroot to the live directory. 
+cp "${HOME}/LIVE_BOOT/chroot/boot"/vmlinuz-* \
+    "${HOME}/LIVE_BOOT/staging/live/vmlinuz" && \
+cp "${HOME}/LIVE_BOOT/chroot/boot"/initrd.img-* \
+    "${HOME}/LIVE_BOOT/staging/live/initrd"
+
+# Create an ISOLINUX (Syslinux) boot menu. This boot menu is used when booting in BIOS/legacy mode. 
+cat <<'EOF' > "${HOME}/LIVE_BOOT/staging/isolinux/isolinux.cfg"
+UI vesamenu.c32
+
+MENU TITLE Boot Menu
+DEFAULT linux
+TIMEOUT 600
+MENU RESOLUTION 640 480
+MENU COLOR border       30;44   #40ffffff #a0000000 std
+MENU COLOR title        1;36;44 #9033ccff #a0000000 std
+MENU COLOR sel          7;37;40 #e0ffffff #20ffffff all
+MENU COLOR unsel        37;44   #50ffffff #a0000000 std
+MENU COLOR help         37;40   #c0ffffff #a0000000 std
+MENU COLOR timeout_msg  37;40   #80ffffff #00000000 std
+MENU COLOR timeout      1;37;40 #c0ffffff #00000000 std
+MENU COLOR msg07        37;40   #90ffffff #a0000000 std
+MENU COLOR tabmsg       31;40   #30ffffff #00000000 std
+
+LABEL linux
+  MENU LABEL Debian Live [BIOS/ISOLINUX]
+  MENU DEFAULT
+  KERNEL /live/vmlinuz
+  APPEND initrd=/live/initrd boot=live
+
+LABEL linux
+  MENU LABEL Debian Live [BIOS/ISOLINUX] (nomodeset)
+  MENU DEFAULT
+  KERNEL /live/vmlinuz
+  APPEND initrd=/live/initrd boot=live nomodeset
+EOF
+
+# Create a second, similar, boot menu for GRUB. 
+# This boot menu is used when booting in EFI/UEFI mode. 
+
+cat <<'EOF' > "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg"
+insmod part_gpt
+insmod part_msdos
+insmod fat
+insmod iso9660
+
+insmod all_video
+insmod font
+
+set default="0"
+set timeout=30
+
+# If X has issues finding screens, experiment with/without nomodeset.
+
+menuentry "Debian Live [EFI/GRUB]" {
+    search --no-floppy --set=root --label DEBLIVE
+    linux ($root)/live/vmlinuz boot=live
+    initrd ($root)/live/initrd
+}
+
+menuentry "Debian Live [EFI/GRUB] (nomodeset)" {
+    search --no-floppy --set=root --label DEBLIVE
+    linux ($root)/live/vmlinuz boot=live nomodeset
+    initrd ($root)/live/initrd
+}
+EOF
+
+# Copy the grub.cfg file to the EFI BOOT directory. 
+
+cp "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg" "${HOME}/LIVE_BOOT/staging/EFI/BOOT/"
+
+# Create a third boot config. 
+# This config will be an early configuration file that is embedded 
+# inside GRUB in the EFI partition. 
+# This finds the root and loads the GRUB config from there. 
+
+cat <<'EOF' > "${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+if ! [ -d "$cmdpath" ]; then
+    # On some firmware, GRUB has a wrong cmdpath when booted from an optical disc.
+    # https://gitlab.archlinux.org/archlinux/archiso/-/issues/183
+    if regexp --set=1:isodevice '^(\([^)]+\))\/?[Ee][Ff][Ii]\/[Bb][Oo][Oo][Tt]\/?$' "$cmdpath"; then
+        cmdpath="${isodevice}/EFI/BOOT"
+    fi
+fi
+configfile "${cmdpath}/grub.cfg"
+EOF
+
+# Your LIVE_BOOT directory should now roughly look like this. 
+
+IVE_BOOT/chroot/*tons of chroot files*
+LIVE_BOOT/staging/live/initrd
+LIVE_BOOT/staging/live/vmlinuz
+LIVE_BOOT/staging/live/filesystem.squashfs
+LIVE_BOOT/staging/isolinux/isolinux.cfg
+LIVE_BOOT/staging/EFI/BOOT
+LIVE_BOOT/staging/boot/grub/grub.cfg
+LIVE_BOOT/staging/boot/grub/x86_64-efi
+
+# Copy BIOS/legacy boot required files into our workspace.
+
+cp /usr/lib/ISOLINUX/isolinux.bin "${HOME}/LIVE_BOOT/staging/isolinux/" && \
+cp /usr/lib/syslinux/modules/bios/* "${HOME}/LIVE_BOOT/staging/isolinux/"
+
+# Copy EFI/modern boot required files into our workspace.
+
+cp -r /usr/lib/grub/x86_64-efi/* "${HOME}/LIVE_BOOT/staging/boot/grub/x86_64-efi/"
+
+# Generate an EFI bootable GRUB image.
+
+grub-mkstandalone -O i386-efi \
+    --modules="part_gpt part_msdos fat iso9660" \
+    --locales="" \
+    --themes="" \
+    --fonts="" \
+    --output="${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTIA32.EFI" \
+    "boot/grub/grub.cfg=${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+
+grub-mkstandalone -O x86_64-efi \
+    --modules="part_gpt part_msdos fat iso9660" \
+    --locales="" \
+    --themes="" \
+    --fonts="" \
+    --output="${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTx64.EFI" \
+    "boot/grub/grub.cfg=${HOME}/LIVE_BOOT/tmp/grub-embed.cfg"
+
+# Create a FAT16 UEFI boot disk image containing the EFI bootloaders. 
+
+(cd "${HOME}/LIVE_BOOT/staging" && \
+    dd if=/dev/zero of=efiboot.img bs=1M count=20 && \
+    mkfs.vfat efiboot.img && \
+    mmd -i efiboot.img ::/EFI ::/EFI/BOOT && \
+    mcopy -vi efiboot.img \
+        "${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTIA32.EFI" \
+        "${HOME}/LIVE_BOOT/staging/EFI/BOOT/BOOTx64.EFI" \
+        "${HOME}/LIVE_BOOT/staging/boot/grub/grub.cfg" \
+        ::/EFI/BOOT/
+)
+
+# Generate the .iso disc image file.
+
+xorriso \
+    -as mkisofs \
+    -iso-level 3 \
+    -o "${HOME}/LIVE_BOOT/debian-custom.iso" \
+    -full-iso9660-filenames \
+    -volid "DEBLIVE" \
+    --mbr-force-bootable -partition_offset 16 \
+    -joliet -joliet-long -rational-rock \
+    -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin \
+    -eltorito-boot \
+        isolinux/isolinux.bin \
+        -no-emul-boot \
+        -boot-load-size 4 \
+        -boot-info-table \
+        --eltorito-catalog isolinux/isolinux.cat \
+    -eltorito-alt-boot \
+        -e --interval:appended_partition_2:all:: \
+        -no-emul-boot \
+        -isohybrid-gpt-basdat \
+    -append_partition 2 C12A7328-F81F-11D2-BA4B-00A0C93EC93B ${HOME}/LIVE_BOOT/staging/efiboot.img \
+    "${HOME}/LIVE_BOOT/staging"
diff --git a/qemu-bios.sh b/qemu-bios.sh
new file mode 100755
index 0000000..00db97a
--- /dev/null
+++ b/qemu-bios.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# Use this script without arguments to run the generated ISO image with QEMU.
+# If you get kernel panic with message "No working init found", then try to
+# increase the RAM from 128M to 256M.
+
+if [ "`uname -m`" = "x86_64" ] ; then
+  ARCH="x86_64"
+else
+  ARCH="i386"
+fi
+
+cmd="qemu-system-$ARCH -m 1024M -cdrom debian-custom.iso -net nic,model=virtio"
+
+if [ "$1" = "-hdd" -o "$1" = "-h" ] ; then
+  echo "Starting QEMU with attached ISO image and hard disk."
+  echo 'console' | $cmd -hda hdd.img
+else
+  echo "Starting QEMU with attached ISO image."
+  echo 'console' | $cmd
+fi
diff --git a/tmp/grub-embed.cfg b/tmp/grub-embed.cfg
new file mode 100644
index 0000000..f243d09
--- /dev/null
+++ b/tmp/grub-embed.cfg
@@ -0,0 +1,8 @@
+if ! [ -d "$cmdpath" ]; then
+    # On some firmware, GRUB has a wrong cmdpath when booted from an optical disc.
+    # https://gitlab.archlinux.org/archlinux/archiso/-/issues/183
+    if regexp --set=1:isodevice '^(\([^)]+\))\/?[Ee][Ff][Ii]\/[Bb][Oo][Oo][Tt]\/?$' "$cmdpath"; then
+        cmdpath="${isodevice}/EFI/BOOT"
+    fi
+fi
+configfile "${cmdpath}/grub.cfg"