What will be the output of the command sequence below if /dev/sdb1 is already mounted on /mnt/usb?

medium📝 Command Output Q13 of 15

Linux CLI - Disk and Storage

What will be the output of the command sequence below if /dev/sdb1 is already mounted on /mnt/usb?

mount /dev/sdb1 /mnt/usb
mount | grep /mnt/usb

A/dev/sdb1 on /mnt/usb type ext4 (rw,relatime)

Bmount: /mnt/usb is busy

Cmount: /dev/sdb1 is already mounted

DNo output

Step-by-Step Solution

Solution:

Step 1: Understand mounting an already mounted device
Running mount on an already mounted device usually remounts or shows no error, depending on system, but the second command lists mounts.
Step 2: Analyze the grep output
The command mount | grep /mnt/usb shows the current mount info for that directory, typically like /dev/sdb1 on /mnt/usb type ext4 (rw,relatime).
Final Answer:
/dev/sdb1 on /mnt/usb type ext4 (rw,relatime) -> Option A
Quick Check:
mount | grep shows mount info [OK]

Quick Trick: mount | grep shows current mounts [OK]

Common Mistakes:

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