LPIC-2 Linux Kernel and System Startup Practice Question
A system administrator wants to change the default kernel boot parameters temporarily to debug a boot issue. Which step should be taken at the GRUB menu to modify kernel parameters for the next boot only?
⚠ Common exam trap
Many exam-takers confuse the temporary edit (pressing 'e') with the permanent configuration method (editing /etc/default/grub), assuming both achieve the same result for a single boot.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Select the kernel entry and press 'e' to edit the boot parameters.
Pressing 'e' at the GRUB menu allows you to edit the boot parameters for the selected kernel entry temporarily. This modifies the kernel command line only for the current boot, without persisting changes to disk. After editing, pressing Ctrl+X or F10 boots the system with the modified parameters, making it ideal for debugging boot issues.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Select the kernel entry and press 'e' to edit the boot parameters.
Why this is correct
Pressing 'e' allows temporary editing of boot entries.
- ✗
Edit /etc/default/grub and run update-grub to apply changes.
Why it's wrong here
This makes permanent changes, not temporary.
- ✗
Press 'c' to enter the command line and modify parameters.
Why it's wrong here
The command line is for advanced commands, not editing boot entries.
- ✗
Press 'Esc' to access the advanced options menu.
Why it's wrong here
Esc returns to the previous menu.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-2 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-2 exam.