Error Saving Files to External Hard Drive on CompactRIO

Updated Feb 12, 2021

Reported In


  • CompactRIO Controller

Operating System

  • Linux
  • LabVIEW Real-Time (NI Linux Real-Time)

Issue Details

I have a USB Hard Drive formatted to EXT3 connected to my CompactRIO (cRIO) controller. However, when I go to try to move files to the the drive on the cRIO, I get an error from Windows stating:

Error: Can't Read From the Source File or Disk

How can I resolve this issue so that I can properly save files to my external hard drive? 


This issue is likely related to file storage permissions from the Linux OS. The Read/Write ability has to be setup correctly for you to be able to save files properly to the cRIO. 

To access this information, you will need to access the shell of your Linux device, and then set the file permissions using a command like "chmod" with the correct sequence for what file preferences you would like to set. You may want to consult external Linux info for the correct codes to be able to access your files in the correct manner (see related links).