Aaron Bies
57 lines
1.6 KiB
Makefile
Executable File
57 lines
1.6 KiB
Makefile
Executable File
#!/usr/bin/env just --justfile
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IMG_FILE := 'small.img'
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IMG_SIZE_MB := '36'
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EFI_NAME := 'bootx64'
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EFI_FILE := 'bootx64.efi'
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MNT_DIR := 'esp_mnt'
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default: image
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build:
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@echo ">>> Building UEFI executable ({{EFI_FILE}})..."
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zig build-exe -OReleaseFast -target x86_64-uefi-msvc --name {{EFI_NAME}} main.zig
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_image-init:
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echo ">>> Creating blank disk image: {{IMG_FILE}} ({{IMG_SIZE_MB}}MB)..."
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#dd if=/dev/zero of={{IMG_FILE}} bs=1M count={{IMG_SIZE_MB}}
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fallocate -l {{IMG_SIZE_MB}}M {{IMG_FILE}}
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sudo -v
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echo ">>> Creating GPT and EFI System Partition..."
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sudo sgdisk --new=1:0:0 --typecode=1:ef00 {{IMG_FILE}}
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image: build _image-init
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#!/usr/bin/env bash
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set -euo pipefail
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LOOP_DEV=$(sudo losetup --partscan --show --find {{IMG_FILE}})
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trap 'sudo umount {{MNT_DIR}} 2>/dev/null || true; sudo losetup -d "$LOOP_DEV" 2>/dev/null || true; rm -rf {{MNT_DIR}};' EXIT
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echo ">>> Using loop device: $LOOP_DEV"
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echo ">>> Formatting EFI partition (FAT32)..."
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sudo mkfs.vfat -F32 "${LOOP_DEV}p1"
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echo ">>> Mounting partition..."
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mkdir -p {{MNT_DIR}}
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sudo mount "${LOOP_DEV}p1" {{MNT_DIR}}
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echo ">>> Copying EFI executable to EFI/BOOT/BOOTX64.EFI..."
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sudo mkdir -p {{MNT_DIR}}/EFI/BOOT
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sudo cp {{EFI_FILE}} {{MNT_DIR}}/EFI/BOOT/BOOTX64.EFI
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echo ">>> Syncing filesystem..."
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sync
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echo "Success! Bootable image created: {{IMG_FILE}}"
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run: image
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qemu-system-x86_64 -bios /usr/share/ovmf/OVMF.fd -drive format=raw,file={{IMG_FILE}}
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clean:
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@echo ">>> Cleaning up..."
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-rm -vrf zig-cache zig-out
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-rm -vf *.img bootx64*
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@echo ">>> Cleanup complete."
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