The correct answer is that the BIOS boot order is set to a device that does not contain a bootable operating system. This error occurs during the POST phase, before any Linux bootloader like GRUB is loaded, meaning the system firmware cannot locate a valid boot sector on any device in its priority list. Since the server has a single SATA hard disk, the most likely cause is that the boot order prioritizes another device—such as network boot or removable media—over the hard disk, or the hard disk itself is not listed first. On the LPIC-1 exam, this question tests your understanding of the boot process sequence, from firmware initialization to bootloader handoff, and the common trap is assuming the issue is a corrupted bootloader rather than a misconfigured boot order. Remember the mnemonic: POST before bootloader—if the error appears before any Linux logo, check the BIOS boot order first.
LPIC-1 System Architecture Practice Question
This LPIC-1 practice question tests your understanding of system architecture. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A system administrator notices that a server with a freshly installed Linux system fails to boot with the error 'No bootable device found'. The server has a single SATA hard disk connected to the motherboard's SATA controller. Which of the following is the most likely cause of this issue?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The BIOS boot order is set to a device that does not contain a bootable operating system.
The error 'No bootable device found' occurs during the BIOS/UEFI POST phase, before any bootloader is loaded. This indicates that the system firmware cannot find a valid boot sector on any device in its boot order. Since the server has a single SATA hard disk, the most likely cause is that the BIOS boot order is set to a different device (e.g., a network boot or removable media) that does not contain a bootable operating system, or the hard disk itself is not listed first in the boot priority.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The root filesystem is formatted with an unsupported filesystem type.
Why it's wrong here
An unsupported root filesystem would cause a kernel panic after the bootloader loads, not a boot device error.
✗
The kernel module for the SATA controller is not included in the initramfs.
Why it's wrong here
A missing kernel module would cause a kernel panic during boot, not a 'No bootable device found' error.
✗
The GRUB bootloader configuration file is missing or corrupted.
Why it's wrong here
GRUB issues would show a GRUB prompt or error, not a BIOS-level boot device error.
✓
The BIOS boot order is set to a device that does not contain a bootable operating system.
Why this is correct
The BIOS attempts to boot from a device that lacks a bootloader, resulting in the error.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse a pre-boot firmware error with a bootloader or kernel issue, leading them to incorrectly select options related to GRUB configuration or initramfs modules, when the actual problem is a simple BIOS boot order misconfiguration.
Trap categories for this question
Command / output trap
GRUB issues would show a GRUB prompt or error, not a BIOS-level boot device error.
Detailed technical explanation
How to think about this question
The 'No bootable device found' error is generated by the system firmware (BIOS or UEFI) when it iterates through the boot order list and fails to find a valid Master Boot Record (MBR) or GUID Partition Table (GPT) with a bootable flag on any device. In a typical Linux boot sequence, the BIOS first checks the boot order; if the SATA hard disk is not first or is disabled in the boot menu, the firmware will skip it and report the error. This is distinct from bootloader or kernel errors, which occur later in the boot process after the firmware has successfully handed off control.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the LPIC-1 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
System Architecture — This question tests System Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The BIOS boot order is set to a device that does not contain a bootable operating system. — The error 'No bootable device found' occurs during the BIOS/UEFI POST phase, before any bootloader is loaded. This indicates that the system firmware cannot find a valid boot sector on any device in its boot order. Since the server has a single SATA hard disk, the most likely cause is that the BIOS boot order is set to a different device (e.g., a network boot or removable media) that does not contain a bootable operating system, or the hard disk itself is not listed first in the boot priority.
What should I do if I get this LPIC-1 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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