Troubleshoot issues with your emulator
Please note that some steps may make use of the Command-Line, and may be harmful to your computer if used incorrectly. Even sufficient knowledge may result in more issues than what you started out with.

If you are getting a VFS unable to mount error, that is because the image is corrupt. Please re-download the image. (This can be done by the 'Config > Configure boot disk' menu item) No longer necessary as of 2.7.1, as downloads are now verified.

The Pi 2 does not have TCP/UDP networking. The closest you can get is text-over-CLI, which is good for pasting text into files. Maybe this can be used to paste binary data, I am not to know.
You may try SFTP over localhost:3122 for the Pi 1, however the Pi 2 does not support this.

Please use the steps below to troubleshoot your RaspiEmu software.

Step 1
Please make sure that your copy is up-to-date. The latest versions are available at, and if you are a donor, available at

Step 2
Make sure your system is compatible. The current stable OSes is between OS X 10.8 and 10.11, with support for Sierra a little unstable.

Step 3
Is both the runtime and the disk image installed?
QEMU is necessary for execution, and should automatically be prompted. Please re-install if it's already installed.
The disk image is the boot disk - no way it'll work without it. Try to re-download if it's already installed.

Step 4
Make sure you have entered valid arguments for QEMU. Try removing them by clicking the reset button in the Advanced > Emulation Arguments menubar item.

Step 5
Make sure that your attached USB device is correct. Otherwise, try disabling it completely by clicking on "Change" in the Tools > USB Device menubar item

Step 6
Try re-installing the runtime. This can be done via Tools > Configure runtime

Step 7
If nothing of the above works, you could try a configuration reset by going to Preferences > Reset configuration.

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