Skip to content

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.
  • Labs icon Lab
  • A Cloud Guru
Google Cloud Platform icon

Fix This Broken Stacked Encrypted Linux Filesystem

In this activity you will resolve an issue that prevents the creation of an encrypted filesystem using eCryptfs. You are working as a Systems Administrator and have been tasked with creating an encrypted filesystem using eCryptFS. However, when you attempt to mount the filesystem you receive the following error: ``` ...unknown filesystem type 'ecryptfs'. ``` Resolve this error and mount the filesystem.

Google Cloud Platform icon

Path Info

Clock icon Intermediate
Clock icon 15m
Clock icon Jan 31, 2020

Contact sales

By filling out this form and clicking submit, you acknowledge our privacy policy.

Table of Contents

  1. Challenge

    Identify the Issue and Resolve It

    Is the kernel module installed? Check with this:

    lsmod | grep ecryptfs

    If not, load it:

    modprobe ecryptfs
  2. Challenge

    Create the Cipher Directory and Mount Point

    Create the cipher directory to hold encrypted data:

    mkdir secret-enc

    Create the mount point to access unencrypted data:

    mkdir secret
  3. Challenge

    Add Your Passphrase to the Kernel Keyring

    export KSIG=
  4. Challenge

    Mount the Encrypted Filesystem

    Substitute the key signature from the ecryptfs-add-passphrase command:

    echo $KSIG
    sudo mount -i -t ecryptfs secret-enc/ secret/ -o ecryptfs_sig=$KSIG,ecryptfs_fnek_sig=$KSIG,ecryptfs_cipher=aes,ecryptfs_key_bytes=32,ecryptfs_unlink_sigs

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.

Start learning by doing today

View Plans