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XK0-006 · Question #153

A Linux administrator attempts to unmount the local filesystem /data in order to mount a new volume. However, the administrator receives the following error message: umount: /data: target is busy…

The correct answer is D. fuser -mk /data. The fuser command identifies and terminates processes that are actively using the /data filesystem, allowing it to be safely unmounted once those processes are stopped.

Troubleshooting

Question

A Linux administrator attempts to unmount the local filesystem /data in order to mount a new volume. However, the administrator receives the following error message:

umount: /data: target is busy Which of the following commands should the administrator run to resolve the issue?

Options

  • Atree -g /data
  • Bls -ld /data
  • Cstat -f /data
  • Dfuser -mk /data

How the community answered

(30 responses)
  • A
    3% (1)
  • B
    13% (4)
  • C
    3% (1)
  • D
    80% (24)

Explanation

The fuser command identifies and terminates processes that are actively using the /data filesystem, allowing it to be safely unmounted once those processes are stopped.

Topics

#filesystem unmount#fuser#target busy#process blocking

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