diff --git a/Makefile b/Makefile
index 63eb7fb..5462a57 100644
--- a/Makefile
+++ b/Makefile
@@ -8,20 +8,32 @@ DISK_LOOP			=	/dev/loop690
 
 PART1_START_SECTOR	=	2048
 PART1_END_SECTOR	=	4096
+PART1_START			=	$$(( $(PART1_START_SECTOR) * 512 ))
+PART1_SIZE			=	$$(( ($(PART1_END_SECTOR) - $(PART1_START_SECTOR)) * 512 ))
 PART1_ID			=	1
 PART1_TYPE			=	0x9F
 PART1_LOOP			=	/dev/loop691
 
 PART2_START_SECTOR	=	6144
 PART2_END_SECTOR	=	71680
+PART2_START			=	$$(( $(PART2_START_SECTOR) * 512 ))
+PART2_SIZE			=	$$(( ($(PART2_END_SECTOR) - $(PART2_START_SECTOR)) * 512 ))
 PART2_ID			=	2
 PART2_TYPE			=	0x83
+PART2_FSTYPE		=	ext2
+PART2_LABEL			=	smol
+PART2_UUID			=	11223344-aabb-ccdd-ffee-cafebabed00d
 PART2_LOOP			=	/dev/loop692
 
-PART3_START_SECTOR	=	73728s
+PART3_START_SECTOR	=	73728
 PART3_END_SECTOR	=	$$(( ($(DISK_SIZE) / 512) - 1 ))
+PART3_START			=	$$(( $(PART3_START_SECTOR) * 512 ))
+PART3_SIZE			=	$$(( ($(PART3_END_SECTOR) - $(PART3_START_SECTOR)) * 512 ))
 PART3_ID			=	3
 PART3_TYPE			=	0x83
+PART3_FSTYPE		=	ext2
+PART3_LABEL			=	root
+PART3_UUID			=	44332211-bbaa-ddcc-eeff-cafebabed00d
 PART3_LOOP			=	/dev/loop693
 
 .PHONY: clean
@@ -36,10 +48,22 @@ $(DISK):
 	sudo parted $(DISK_LOOP) mkpart primary $(PART2_START_SECTOR)s $(PART2_END_SECTOR)s	# 2 - 32MB small EXT2 partition
 	sudo parted $(DISK_LOOP) mkpart primary $(PART3_START_SECTOR)s $(PART3_END_SECTOR)s	# 3 - "root" EXT2 partition
 	# set MBR partition types
-	sudo parted $(DISK_LOOP) type $(PART1_ID) $(PART1_TYPE)
-	sudo parted $(DISK_LOOP) type $(PART2_ID) $(PART2_TYPE)
-	sudo parted $(DISK_LOOP) type $(PART3_ID) $(PART3_TYPE)
+	sudo parted $(DISK_LOOP) type $(PART1_ID) $(PART1_TYPE)	# 1 - 0x9F BSD/OS (BSD/386) as reference to Gundam: The 08th MS Team
+	sudo parted $(DISK_LOOP) type $(PART2_ID) $(PART2_TYPE)	# 2 - 0x83 Linux 
+	sudo parted $(DISK_LOOP) type $(PART3_ID) $(PART3_TYPE)	# 3 - 0x83 Linux
+	# attach partitions
+	sudo losetup --offset $(PART1_START) --sizelimit $(PART1_SIZE) $(PART1_LOOP) $(DISK)
+	sudo losetup --offset $(PART2_START) --sizelimit $(PART2_SIZE) $(PART2_LOOP) $(DISK)
+	sudo losetup --offset $(PART3_START) --sizelimit $(PART3_SIZE) $(PART3_LOOP) $(DISK)
+	# format partitions
+	python gen/test_pattern.py | sudo dd of=$(PART1_LOOP)
+	sudo mkfs.ext2 -t $(PART2_FSTYPE) -L $(PART2_LABEL) -U $(PART2_UUID) $(PART2_LOOP)
+	sudo mkfs.ext2 -t $(PART3_FSTYPE) -L $(PART3_LABEL) -U $(PART3_UUID) $(PART3_LOOP)
+	# fill EXT2 partitions
 	# detach loopback devices
+	sudo losetup -d $(PART1_LOOP)
+	sudo losetup -d $(PART2_LOOP)
+	sudo losetup -d $(PART3_LOOP)
 	sudo losetup -d $(DISK_LOOP)
 
 clean:
diff --git a/gen/test_pattern.py b/gen/test_pattern.py
new file mode 100644
index 0000000..5195ecd
--- /dev/null
+++ b/gen/test_pattern.py
@@ -0,0 +1,5 @@
+import sys
+from struct import pack
+
+for i in range (0, 2048):
+    sys.stdout.buffer.write(pack("<I", i) + b'\0'*504 + b'\x45\x4e\x44\x21')
\ No newline at end of file