Linux common boot issues and troubleshooting

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
Requirements
PC or Laptop with internet Connection
There is no formal prerequisites for this course; however, previous system administrator experience on other operating system would be very beneficial.
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
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
Who this course is for
Graduate Students and also for those who are in job in Linux Administration & wants to get hands-on practical experience on troubleshooting & advance level of learning Red Hat Linux
IT professionals across a broad range of disciplines who need to perform essesntial administration tasks.
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