OIB

OS Image Builder? It is just a simple GPT+FAT image builder.

Usage

You can pass a config file:

./oib -c config.toml

Or pass your arguments directly:

./oib -o output.img -f build/kernel:kernel -d assets/static:static

# Combine config file with additional command line options
./oib -c config.toml -f additional_file.txt:extra.txt -d test/dir_name:dir_name

Available Options

• -o, --output: Output image path
• -c, --config: Config file path
• -f, --file: Add a file to the image (format: source:destination)
• -d, --dir: Add a folder to the image (format: source:destination)

Command line arguments take precedence over configuration file settings when both are provided.

Example Config

output = "output.img"

[[files]]
source = "build/kernel"
dest = "kernel"

[[files]]
source = "assets/BOOTX64.EFI"
dest = "efi/boot/bootx64.efi"

[[files]]
source = "assets/limine.conf"
dest = "limine.conf"

[[folders]]
source = "assets/static"
dest = "static"

Acknowledgement

The code is based on bootloader, a great pure-rust x86 bootloader.