Linux common boot issues and troubleshooting




Linux common boot issues and troubleshooting

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


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

Url: View Details

What you will learn
  • Common Linux boot issues
  • Basic System Recovery
  • Booting of RHEL 7 with systemd

Rating: 4.2

Level: Intermediate Level

Duration: 4 hours

Instructor: Shikhar Verma • 60k+ Students Worldwide


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