linux U盘格式化

//umount

for(i = 0;i < 5;i++)

{

ret = system("umount /media/USB\n");

if(ret == 0)

{

ret = 0;

break;

}

else

{

fprintf(stderr,"SD Umount try count = %d\n",(i + 1));

}

sleep(1);

}

sleep(5);

//format

sprintf(buffer,"%s /dev/%s\n","mkdosfs",buff);

printf("3---------------------------------------buffer = %s\n",buffer);

if(system(buffer) == 0)//success

{

ret = 0;

}else

{

ret = -1;

}

sleep(5);

//mount

memset(buffer,'0',sizeof(buffer));

//sprintf(buffer,"mount -t vfat /dev/%s %s\n",buff,USB_MNT_PATH);

sprintf(buffer,"mount /dev/%s %s\n",buff,USB_MNT_PATH);

printf("4---------------------------------------buffer = %s\n",buffer);

if(system(buffer) == 0)//success

{

ret = 0;

}else

{

ret = -1;

}

return ret;