LPIC-1 Devices, Filesystems and FHS Practice Question
An admin runs 'lsblk' and sees that /dev/nvme0n1p1 is listed with size 512M and mounted at /boot/efi. What is the most likely filesystem type?
⚠ Common exam trap
Candidates often assume /boot/efi uses a Linux filesystem like ext4 because it is a Linux mount point, but the UEFI specification mandates FAT for the ESP, making vfat the only correct choice.
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
✓
vfat
The /boot/efi partition is the EFI System Partition (ESP), which is required for UEFI boot. The ESP must be formatted with a FAT-based filesystem (typically vfat/FAT32) because the UEFI firmware is designed to read FAT partitions to load boot loaders. The size of 512M is also typical for an ESP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ext4
Why it's wrong here
ext4 is not standard for ESP.
- ✗
swap
Why it's wrong here
Swap is not a filesystem type and not mounted at /boot/efi.
- ✗
xfs
Why it's wrong here
XFS is not used for ESP.
- ✓
vfat
Why this is correct
ESP uses FAT32, often labeled vfat in Linux.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-1 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-1 exam.