LPIC-2 Linux Kernel and System Startup Practice Question
During boot, the kernel outputs a message indicating that a required device driver is not found. Which command can be used to rebuild the initramfs to include the missing driver?
⚠ Common exam trap
Watch out — candidates often confuse distribution-specific tools (mkinitcpio for Arch, mkinitrd for old Red Hat) with the cross-distribution standard dracut, which is the correct answer for LPIC-2's focus on modern enterprise Linux.
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
✓
dracut
Dracut is the standard tool for building initramfs images on modern Red Hat-based distributions (RHEL, CentOS, Fedora). When a required kernel driver is missing during boot, you can use `dracut --force` to rebuild the initramfs, which will automatically include the currently loaded kernel modules and any specified in configuration files. This ensures the missing driver is available early in the boot process.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
mkinitrd
Why it's wrong here
mkinitrd is deprecated in favor of dracut or update-initramfs.
- ✗
grub-mkconfig
Why it's wrong here
grub-mkconfig updates GRUB configuration, not initramfs.
- ✗
mkinitcpio
Why it's wrong here
mkinitcpio is specific to Arch Linux.
- ✓
dracut
Why this is correct
dracut is the standard tool for building initramfs on many distributions.
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JA
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.