4 stage1/boot.bin: stage1/boot.asm
5 nasm -DSTAGE2SIZE=$$(du -b stage2/target/x86-loadnothing/release/stage2 | cut -f1) -f bin -o stage1/boot.bin stage1/boot.asm
8 echo -en "\x55\xAA" > magic.bin
10 stage2/target/x86-loadnothing/release/stage2: stage2/src/main.rs
11 cd stage2 && cargo rustc --release -- --emit=obj
12 ld -T linker.ld -m elf_i386 -o stage2/target/x86-loadnothing/release/stage2.bin --oformat binary stage2/target/x86-loadnothing/release/stage2 -Ttext=0x7e00
13 mv stage2/target/x86-loadnothing/release/stage2.bin stage2/target/x86-loadnothing/release/stage2
15 nothing.img: magic.bin stage2/target/x86-loadnothing/release/stage2 stage1/boot.bin
16 dd if=/dev/zero of=nothing.img bs=32M count=1
17 parted -s nothing.img mklabel msdos
18 parted -s -a optimal nothing.img mkpart primary fat32 16MiB 100%
19 doas losetup /dev/loop1 nothing.img
20 doas mkfs.fat /dev/loop1p1
21 doas losetup -d /dev/loop1
22 dd if=stage1/boot.bin of=nothing.img bs=1 count=446 conv=notrunc
23 dd if=magic.bin of=nothing.img bs=1 seek=510 count=2 conv=notrunc
24 dd if=stage2/target/x86-loadnothing/release/stage2 of=nothing.img bs=512 seek=1 conv=notrunc
27 qemu-system-x86_64 -hda nothing.img
30 rm -f magic.bin stage1/boot.bin nothing.img
31 cd stage2 && cargo clean