我有一个 Ubuntu 18.04 实例，df- h 命令返回以下输出。
Filesystem Size Used Avail Use% Mounted on
udev 16G 0 16G 0% /dev
tmpfs 3.1G 804K 3.1G 1% /run
/dev/nvme0n1p1 97G 28G 70G 29% /
tmpfs 16G 0 16G 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 16G 0 16G 0% /sys/fs/cgroup
/dev/loop0 18M 18M 0 100% /snap/amazon-ssm-agent/1566
/dev/loop1 94M 94M 0 100% /snap/core/8935
fs-44a34f7c.efs.ap-southeast-2.amazonaws.com:/ 8.0E 0 8.0E 0% /mnt/efs/fs1
/dev/loop2 98M 98M 0 100% /snap/core/9289
tmpfs 3.1G 0 3.1G 0% /run/user/1000
AWS EFS 是否是我的实例中的根卷？