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
Labs

Recover Mis-Configured or Broken LVM Configurations

In this exercise, you will need to assess the cause of a broken LVM configuration and resolve it without losing the data in the volume. *This course is not approved or sponsored by Red Hat.*

Try for free Contact sales
Google Cloud Platform icon
Labs

Path Info

Level
Clock icon Advanced
Duration
Clock icon 1h 0m
Published
Clock icon Apr 04, 2019

Contact sales

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

Table of Contents

  1. Challenge

    Resolve LVM configuration.

    Check the mounts with lsbkl:

    lsblk

    Attempt to mount the volume:

    mount /lvm_mount

    View the archive metadata:

    vgcfgrestore -l <VOLGROUP NAME>

    Review the changes:

    "Created before executing 'lvresize -L500M /dev/vg_1/lv_1'"

    Restore prior to latest change:

    vgcfgrestore -f /etc/lvm/archive/vg_1_00002-84057####.vg vg_1

    Deactivate and reactive the volume:

    lvchange -an /dev/<VOLGROUP>/<LOG>

    lvchange -ay /dev/<VOLGROUP>/<LOG>

  2. Challenge

    Verify LVM volume contents.

    The MD5s of each file in the volume are available in the /home/cloud_user/lvm_md5s.txt file. Validate that the md5sums haven't changed for the files in the /lvm_mount directory.

    cat /home/cloud_user/lvm_md5s.txt

    for i in $(ls /lvm_mount/); do md5sum /lvm_mount/$i; done
A Cloud Guru - Labs - Recover Mis-Configured or Broken LVM Configurations
Author
A Cloud Guru

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