Software⏱️ 4 min read📅 2026-06-11

How to Fix: scp copy has error "ambiguous target"

Fix scp ambiguous target error on Mac to Linux file transfer

Quick Answer: Use the full path to the external drive, e.g.scp fileToCopy myMacUser@myMacMachine:/Volumes/MyExternalDrive/targetDirectory

The error 'scp: ambiguous target' occurs when the scp command is unable to determine which directory on the remote machine to copy files into. This issue affects users who are trying to copy files from a Linux (Ubuntu) machine to an external hard drive mounted on a Mac.

This error can be frustrating, especially for those who are not familiar with SCP commands or have limited experience with Linux systems. However, by following the steps outlined in this guide, you should be able to resolve the issue and successfully copy files from your Linux machine to your Mac.

🔍 Why This Happens

  • The primary cause of this error is that the SCP command is not aware of the current working directory on the remote machine. When you specify a target directory in the SCP command, such as '/Volumes/MyExternalDrive/targetDirectory', it assumes that you are specifying a full path to the destination directory.
  • Another possible reason for this error is if the external hard drive is mounted at different locations on the Mac depending on the context of the mount. For example, when you open the Disk Utility app, the external hard drive might be shown as '/Volumes/MyExternalDrive', but when you try to copy files using SCP, it might not recognize this path.

🛠️ Step-by-Step Verified Fixes

Using the Absolute Path

  1. Step 1: To resolve this issue, use the absolute path of the target directory in the SCP command. For example, if your external hard drive is mounted at '/Volumes/MyExternalDrive', you can specify the full path to the destination directory as follows: scp fileToCopy myMacUser@myMacMachine:/Volumes/MyExternalDrive/targetDirectory
  2. Step 2: Make sure to include any necessary directories or subdirectories in the absolute path. For example, if your target directory is located inside a subdirectory called 'Documents', you would use the following command: scp fileToCopy myMacUser@myMacMachine:/Volumes/MyExternalDrive/Documents/targetDirectory
  3. Step 3: Using the absolute path ensures that SCP knows exactly where to copy the files and avoids any ambiguity issues.

Using the Current Working Directory

  1. Step 1: Alternatively, you can use the 'cd' command on the remote machine to change into the desired directory before running the SCP command. For example: ssh myMacUser@myMacMachine 'cd /Volumes/MyExternalDrive/targetDirectory; scp fileToCopy .'
  2. Step 2: This method works by changing the current working directory on the remote machine, so that when you run the SCP command, it knows where to copy the files.

✨ Wrapping Up

By following these steps and using either the absolute path or the current working directory method, you should be able to resolve the 'scp: ambiguous target' error and successfully copy files from your Linux machine to your Mac.

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