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UdemyLinuxPaid courseIntermediate levelCertificate

Linux Common Boot Issues And Troubleshooting (Udemy.com)

Familiar with common Linux boot problems and gets hands on experience on basic system recovery with various lab sessions

4.3
84 reviews

Created by: Shikhar Verma

Last updated March 2026

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What you will learn

  • Common Linux boot issues
  • Basic System Recovery
  • Booting of RHEL 7 with systemd
  • Initramfs file missing/Corrupted
  • Grub related issues
  • Master Boot Record missing/corrupted
  • Critical files are missing like mount binary
  • Familiar with different systemd targets & new commands
  • Practice Lab Session on default target, list dependencies & journalctl etc
  • Booting modes in RHEL 7
  • Rescue mode in RHEL 7
  • Emergency mode in RHEL 7
  • Troubleshooting mode in RHEL 7
  • Resetting the Root Password Using rdbreak

How it compares

Against the other 124 rated Udemy courses in Linux on CourseDuck:

  • Rating4.3 out of 5higher than 25% of them
  • Reviews84#118 of 125 by number of reviews
  • Length3.8 hoursshorter than 74% of them
  • Last updatedMarch 2026more recently than 69% of them

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Course Description

By the end of the course you will:

  • Be able to familiar with common Linux boot problems and gets hands on experience on basic system recovery with various lab sessions.

  • Be able to confidently use the Linux operating system to increase your productivity and Career.

  • Be able to perform everyday computing tasks from the Linux command line. 


                            LINUX Basic Course Outline


Troubleshooting Linux Boot Problems in Red Hat Linux (Basic System Recovery)

  • Linux Boot process

  • Booting of RHEL 7 with systemd

  • Lab on Basic System Recovery (Initramfs file missing/Corrupted)

  • Lab on Basic System Recovery (Grub related issues like stage 1.5/2 grub is missing)-Part1

  • Lab on Basic System Recovery (Grub related issues like stage 1.5/2 grub is missing)-Part2

  • Lab on Basic System Recovery (Master Boot Record missing/corrupted)

  • Lab on Basic System Recovery (Critical files are missing like mount binary)

  • Lab on Basic System Recovery (/boot fs is completely wiped out or corrupted)


Red Hat Enterprise Linux 7

  • Overview about RHEL7 with its new features

  • Comparison with RHEL 6

  • Lab on systemd service (Familiar with different systemd targets & new commands)

  • Practice Lab Session on systemctl status/stop/start/enable/disable <service>

  • Practice Lab Session on default target, list dependencies & journalctl etc


Booting modes in RHEL 7


  • Rescue mode in RHEL 7

  • Lab on rescue mode

  • Emergency mode in RHEL 7

  • Lab on emergency mode

  • Troubleshooting mode (Overview and Lab)

  • Lab on Recovering the Root password in RHEL7

    • Resetting the Root Password Using an Installation Disk 

    • Resetting the Root Password Using rd.break

GRand Unified BootLoader (Grub2)

  • Overview of Grub

  • Grub Configuration file

  • Features of Grub2 and its comparison with Legacy Grub

  • Practical Lab Session - Different commands to run at Grub2 prompt

  • Practical Lab Session - Boot from Grub (Selecting Kernel & Initramfs)

  • Practical Lab Session - How to make your grub password protected

Increase Swap In Linux

  • Overview of Memory/Swap

  • Increase swap size using swap partition

  • Increase swap using swap file
Read More Intermediate Intermediate Level product length iconTime: 3.8h

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Instructor Details

Shikhar Verma

Shikhar Verma – Entrepreneur, Corporate Trainer, and IT Consultant


●Founder & CEO of Techstart – Leads an IT company specializing in designing, developing certified courses, content creation, and managing online/offline IT projects for renowned companies.

●15+ Years of Industry Experience – Worked extensively in the IT sector before establishing his own business, bringing deep expertise in technology and corporate training.

●Passionate About Technology & Education – Dedicated to utilizing his technical skills to drive both organizational success and personal career growth.

●Renowned Udemy Instructor – Simplifies complex technical concepts and delivers them in an engaging and approachable manner.

●Educating Since 2016 – Taught over 100,000 students worldwide across multiple learning platforms.

●Educational Background – Holds a BTech in Electrical and Electronics Engineering.


●Core Expertise:

☆Generative AI, Python, DevOps, Docker, Git, Kubernetes, Linux, Ansible, Shell Scripting

☁️ AWS Cloud (Amazon Web Services), Linux Clustering, GCP

Read More

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Reviews

4.3

84 ratings on Udemy

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By Sunitha.G on 9/26/2024

One of the best course and instructor delivered the best. Thank you.

By Pallav Kumar Dindigala on 5/19/2024

Not technical and not clear. Just displaying the boot process image.

By Sathish CH on 12/3/2023

Excellent Explanation. Lab session on each and every topic gives clear idea. Thanks Shikhar for providing wonderful content with detailed explanation.

By Messekede A MONTCHEBI on 9/19/2023

Great course with detailed and clear explanations of fundamental concepts

By Safiahasan Syed on 7/22/2020

Excellent course! I would recommend to see other courses offered by him too!

By Kelvin Tan Swee Thiam on 5/5/2020

Yes, thru the course , I learned something. But I hope the lecturer can enhance this course to make it more fruitful.

By Mahimairaj Mahimaidoss on 4/15/2020

This Course could have covered more, the Section 4 & 5 is just to drag the Contents. Instead of that you could have added Linux Disk maintenance and troubleshooting. Please add if possible.

By Chris Papas on 3/7/2019

Wow, what a Course! I thought I knew some of these Topics in this Course. Turns out I Didn't, But I do Now! and in Great Detail. Mr Verma is Just Fantastic! he puts together carefully well Organized Courses That go into Great Detail. No Surprises neither he doesn't Jump around nor does he assume you know something. His Course is Laid Out from Bottom to the Top, and each section he takes his time and makes sure you understand his material. He gives 101% to make sure you come away with a Great Knowledge of his Course. Truly 5 Stars Deserved.

By Max Strickland on 12/2/2018

LINUX support for VOD applications. This course has answered a few questions I had on boot issues seen. Work with problems on filesystems caused by raid problems. Raid issues causing system corruption and need to understand the options available when working with corrupt file systems. I usually work remotely logging into LINUX systems via IPMI and then trying to fix raid/boot issues. This course has helped me understand some of the things I find via GOOGLE when looking for solutions to LINUX/RAID problems.

By Syed Shahnawaz Ali on 10/18/2018

Excellent tutorial. Shikar is a real world pro and shares his knowledge of how things work in the real world. Best course I've taken on Udemy.Whether you are a complete beginner or you have knowlegde on linux,this course will help you to grow your linux skills. Shikar goes directly to point and teach things that you will use on your projects or at work every single day.The instructor is very good and each tutorial is very in depth...Thank you..

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Overall Score : 86 / 100

Linux Common Boot Issues And Troubleshooting
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  • Video Duration: icon 3.8h
  • Price: See price on Udemy
  • Provider: icon Udemy
  • Updated: icon March 2026
  • Level: Intermediate Intermediate
  • Language: icon English
  • Certificate: icon Yes
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