Djam/image-builder
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add loopback devices

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This commit is contained in:
Alexander Stefanov 2024-11-13 20:15:23 +00:00
parent 898aab8942
commit c45dfca45a
2 changed files with 35 additions and 0 deletions
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3
build.py
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@ -7,6 +7,7 @@ import multiprocessing
from utils.bootstrap_setup import setup_bootstrap
from utils.common import load_config
from utils.make_disk import create_disk_image, setup_loop_device
from utils.make_disk import create_partitions
BASE_DIR = os.getcwd()
TMP_DIR = os.path.join(BASE_DIR, "tmp")
@ -89,6 +90,8 @@ def main():
if disk_image_path:
loop_device = setup_loop_device(disk_image_path)
print(f"Loop device setup at {loop_device}")
create_partitions(loop_device, config)
print(f"Build completed for {vendor}/{device} with distro {distro}")

32
utils/make_disk.py
View file

@ -41,3 +41,35 @@ def setup_loop_device(disk_image_path):
loop_device = result.stdout.strip()
print(f"Disk image mounted to loop device {loop_device}")
return loop_device
def create_partitions(loop_device, config):
# Получаем параметры из конфигурации
root_size = config.get("ROOT_SIZE", "1024MB").rstrip("MB")
root_fstype = config.get("ROOT_FSTYPE", "ext4")
# Проверка наличия BOOT_SIZE
boot_size = config.get("BOOT_SIZE")
boot_fstype = config.get("BOOT_FSTYPE", "vfat") if boot_size else None
print(f"Creating partitions on {loop_device}...")
if boot_size:
boot_size = boot_size.rstrip("MB")
fdisk_commands = f"""o\nn\np\n1\n\n+{boot_size}M\nt\nc\nn\np\n2\n\n+{root_size}M\nw\n"""
subprocess.run(["sudo", "fdisk", loop_device], input=fdisk_commands, text=True, check=True)
print(f" - Formatting /boot as {boot_fstype} ({boot_size} MB)")
subprocess.run(["sudo", "mkfs.vfat", "-F", "32", f"{loop_device}p1"], check=True)
print(f" - Formatting root (/) as {root_fstype} ({root_size} MB)")
subprocess.run(["sudo", "mkfs.ext4", f"{loop_device}p2"], check=True)
else:
# Если BOOT_SIZE не задан, создаем один раздел для всей системы
fdisk_commands = f"""o\nn\np\n1\n\n+{root_size}M\nw\n"""
subprocess.run(["sudo", "fdisk", loop_device], input=fdisk_commands, text=True, check=True)
# Форматируем один раздел как корневой (/) с учетом root_fstype
print(f" - Formatting single root (/) partition as {root_fstype} ({root_size} MB)")
subprocess.run(["sudo", "mkfs.ext4", f"{loop_device}p1"], check=True)
print("Partitioning and formatting complete.")