load and jump to stage 3 separately from stage 2

justfile

@@ -24,8 +24,8 @@ build_stage_2:
 
 mkimg:
   dd if=/dev/zero of=disk.bin bs=440 count=1 conv=notrunc
-  dd if=stage_1/stage_1.bin of=disk.bin conv=notrunc
-  dd if=stage_2/stage_2.bin of=disk.bin bs=512 seek=70 conv=notrunc
+  dd if=build/stage_1/s1.bin of=disk.bin conv=notrunc
+  dd if=build/s23.bin of=disk.bin bs=512 seek=70 conv=notrunc
 
 # build:
 #   nasm -f bin -Iinclude -o boot0.bin boot0.s