Creating a Btrfs filesystem | LinuC Level 1 101 Exam original practice question

1.05.3Basic

Create Btrfs on the empty block device /dev/vgdata/lvprojects.

Which command is appropriate?

Hint 1: Focus on the requirement

Select the Btrfs command that writes a new filesystem rather than displaying or checking one.

Hint 2: Key terms

Review the short filesystem and storage definitions before comparing the choices.

Detailed explanation

Incorrectbtrfs filesystem show /dev/vgdata/lvprojects

Incorrect. btrfs filesystem show queries an existing filesystem.

Incorrectbtrfs check /dev/vgdata/lvprojects

Incorrect. btrfs check examines an existing Btrfs filesystem.

Correctmkfs.btrfs /dev/vgdata/lvprojects

Correct. mkfs.btrfs creates Btrfs on the device.

Incorrectmount -t btrfs /dev/vgdata/lvprojects /srv/projects

Incorrect. mount attaches an already-created Btrfs filesystem.

An example you can run in a temporary verification environment.

mkfs.btrfs --version 2>&1

btrfs-progsのmkfs.btrfsバージョン

Environment: btrfs-progs 6.x / バージョン表示のみ
Prefer help or version output and a disposable device when testing storage commands.
Formatting, repair, and mount changes can affect data or availability.

Foundation review

filesystem show and check inspect an existing filesystem; mkfs initializes new metadata.

Never run a mkfs command on a device whose contents must be preserved.

Question IDKL-101-580

Environmentbtrfs-progs 6.x / バージョン表示のみ

Last technical review2026-08-13

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