linux 格式化sd卡编程

# 卸载SD卡（假设设备名为 /dev/sdb1）
sudo umount /dev/sdb1

# 格式化为FAT32
sudo mkfs.vfat /dev/sdb1

# 或者格式化为ext4
sudo mkfs.ext4 /dev/sdb1

import subprocess

def format_sd_card(device, filesystem):
    try:
        # 卸载设备
        subprocess.run(['sudo', 'umount', device], check=True)
        
        # 格式化设备
        if filesystem == 'vfat':
            subprocess.run(['sudo', 'mkfs.vfat', device], check=True)
        elif filesystem == 'ext4':
            subprocess.run(['sudo', 'mkfs.ext4', device], check=True)
        else:
            raise ValueError("Unsupported filesystem type")
        
        print(f"Successfully formatted {device} as {filesystem}")
    except subprocess.CalledProcessError as e:
        print(f"Error formatting {device}: {e}")

# 示例调用
format_sd_card('/dev/sdb1', 'vfat')

sudo lsof /dev/sdb1  # 查找占用设备的进程
sudo kill -9 <PID>   # 杀死占用设备的进程

lsblk  # 查看所有块设备
sudo fdisk -l  # 列出所有磁盘分区