Mounting file systems

This page was generated from content adapted from the AWS Developer Guide

Mounting with EFS mount helper

  • Note Amazon EFS does not support mounting from Amazon EC2 Windows instances.
  • Note The watchdog process ensures that each mount's stunnel process is running, and stops the stunnel when the Amazon EFS file system is unmounted. If for some reason a stunnel process is terminated unexpectedly, the watchdog process restarts it.
  • Important You can enable logging for the stunnel process logs. However, enabling the stunnel logs can use up a nontrivial amount of space on your file system.
  • Note Amazon EFS file systems do not support automatic mounting on Amazon EC2 Mac instances running macOS Big Sur.
  • Note Amazon EFS file systems do not support mounting on Amazon EC2 Mac instances running macOS Big Sur at instance launch.
  • Note You can't use Amazon EFS with Microsoft Windows–based Amazon EC2 instances.
  • Note Amazon EFS file systems do not support automatic mounting using /etc/fstab on Amazon EC2 Mac instances running macOS Big Sur.
  • Note Before you can update the /etc/fstab file of your EC2 instance, make sure that you already created your Amazon EFS file system. For more information, see Step 1: Create your Amazon EFS file system.
  • Note In some cases, your Amazon EC2 instance might need to start regardless of the status of your mounted Amazon EFS file system. In such cases, add the nofail option to your file system's entry in your /etc/fstab file.

Additional mounting considerations

  • Note If your EC2 instance needs to start regardless of the status of your mounted EFS file system, add the nofail option to your file system's entry in your /etc/fstab file.

Troubleshooting AMI and kernel versions

  • Note Amazon EFS does not support mounting from Amazon EC2 Windows instances.