在系统自身上进行格式化和内容写入 需要停掉所有占用存储卡的进程，目前只有nginx和vsftpd，然后umount卸载掉，然后进行文件系统创建格式化 重新挂载后启用vsftpd将文件传入

/etc/init.d/nginx stop /etc/init.d/vsftpd stop block umount

mkfs.ext4 /dev/mmcblk0p1 mke2fs 1.42.4 (12-June-2012) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) Stride=0 blocks, Stripe width=0 blocks 485760 inodes, 1939456 blocks 96972 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=1988100096 60 block groups 32768 blocks per group, 32768 fragments per group 8096 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done

block mount /etc/init.d/vsftpd restart