1 files changed, 57 insertions, 0 deletions
diff --git a/make_rootfs.sh b/make_rootfs.sh
new file mode 100755
index 0000000..811c5cb
--- /dev/null
+++ b/make_rootfs.sh
@@ -0,0 +1,57 @@
+#!/bin/bash -xe
+
+IMAGE_VERSION=$( date +%Y%m%d.%H%M%S )
+
+function unmount_pseudo_filesystems(){
+	set +e
+	for dir in dev sys proc; do umount -v "$root"/"$dir"; done
+	set -e
+}
+
+function on_exit(){
+	set +e
+	unmount_pseudo_filesystems
+	umount -v "$root"
+}
+trap on_exit EXIT
+
+root=rootfs/"$IMAGE_VERSION"
+
+mkdir -p "$root"
+
+# bootstrap the OS
+
+debootstrap noble "$root"
+
+for dir in /proc /sys /dev; do
+	mount --bind "$dir" "$root"/"$dir"
+done
+
+export DEBIAN_FRONTEND=noninteractive
+
+chroot "$root" locale-gen en_US.UTF-8
+
+chroot "$root" apt-get update
+
+# Install a kernel and bootloader
+
+chroot "$root" apt-get -y --no-install-recommends install linux-generic-hwe-24.04 grub-efi
+
+if [ "$1" == "with-app" ]; then
+	# Install an application
+	chroot "$root" apt-get update
+	chroot "$root" apt-get install -y software-properties-common
+	chroot "$root" add-apt-repository -y universe
+	chroot "$root" apt-get update
+	chroot "$root" apt-get -y install nethack-console
+fi
+
+
+# Cleanup
+
+chroot "$root" apt-get clean
+
+unmount_pseudo_filesystems
+
+rm -rf "$root"/dev/*
+rm -rf "$root"/var/lib/apt/lists/*