From f43637b7261f08d7d38d9269fd698e70b176e1b9 Mon Sep 17 00:00:00 2001
From: Mark <mark@betalupi.com>
Date: Thu, 12 Dec 2024 07:26:17 -0800
Subject: [PATCH] Added mock rootfs

---
 Makefile        |  1 +
 make/bios       |  3 ++-
 make/filesystem | 13 +++++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 make/filesystem

diff --git a/Makefile b/Makefile
index 113ef89..893a7e5 100644
--- a/Makefile
+++ b/Makefile
@@ -24,4 +24,5 @@ qemu: $(BUILD_DIR)/bios.img
 		-cpu host \
 		-drive file="$<",format=raw
 
+include make/filesystem
 include make/bios
\ No newline at end of file
diff --git a/make/bios b/make/bios
index a9dc9f8..9bbd3f3 100644
--- a/make/bios
+++ b/make/bios
@@ -46,11 +46,12 @@ $(BUILD_DIR)/bios.bin: $(wildcard $(BIOS_SRC)/*.asm) $(BUILD_DIR)/bios.elf
 		"$(BIOS_SRC)/main.asm"
 
 # Build demo disk image
-$(BUILD_DIR)/bios.img: $(BUILD_DIR)/bios.bin
+$(BUILD_DIR)/bios.img: $(BUILD_DIR)/bios.bin $(BUILD_DIR)/filesystem.img
 	rm -f "$@.partial"
 	fallocate -l 256MiB "$@.partial"
 	parted -s -a minimal "$@.partial" mklabel msdos
 	parted -s -a minimal "$@.partial" mkpart primary 2MiB 100%
 	dd if="$<" of="$@.partial" bs=1 count=512 conv=notrunc
 	dd if="$<" of="$@.partial" bs=512 skip=1 seek=1 conv=notrunc
+	dd if="$(BUILD_DIR)/filesystem.img" of="$@.partial" bs=1MiB seek=2 conv=notrunc
 	mv "$@.partial" "$@"
\ No newline at end of file
diff --git a/make/filesystem b/make/filesystem
new file mode 100644
index 0000000..176905c
--- /dev/null
+++ b/make/filesystem
@@ -0,0 +1,13 @@
+$(BUILD_DIR)/filesystem:
+	@mkdir -p $(BUILD_DIR)
+	rm -f $@.partial
+	mkdir $@.partial
+	fallocate -l 1MiB $@.partial/kernel
+	mv $@.partial $@
+
+$(BUILD_DIR)/filesystem.img: $(BUILD_DIR)/filesystem
+	@mkdir -p $(BUILD_DIR)
+	rm -f $@.partial
+	fallocate -l 254MiB $@.partial
+	redoxfs-ar $@.partial $<
+	mv $@.partial $@
\ No newline at end of file