bootloader-x86_64-bios-boot-sector

Crates.iobootloader-x86_64-bios-boot-sector
lib.rsbootloader-x86_64-bios-boot-sector
version0.11.12
created_at2022-11-13 21:14:59.78916+00
updated_at2025-09-03 15:32:40.818726+00
descriptionBIOS boot sector for the `bootloader` crate
homepage
repositoryhttps://github.com/rust-osdev/bootloader
max_upload_size
id714514
size11,315
bootloader (github:rust-osdev:bootloader)

documentation

README

First Stage: Bootsector

This executable needs to fit into the 512-byte boot sector, so we need to use all kinds of tricks to keep the size down.

Build Commands

  1. cargo build --profile=stage-1 -Zbuild-std=core --target ../../i386-code16-boot-sector.json -Zbuild-std-features=compiler-builtins-mem
  2. objcopy -I elf32-i386 -O binary ../../target/i386-code16-boot-sector/stage-1/bootloader-x86_64-bios-boot-sector ../../target/disk_image.img

To run in QEMU:

  • qemu-system-x86_64 -drive format=raw,file=../../target/disk_image.img

To print the contents of the ELF file, e.g. for trying to bring the size down:

  • objdump -xsdS -M i8086,intel ../../target/i386-code16-boot-sector/stage-1/bootloader-x86_64-bios-boot-sector
Commit count: 1327

cargo fmt