title: Is there a way to change a read-only file system to a writable file system on Mac Catalina?
body: <p>I'm trying to copy a file from one folder to another folder. I'm getting an error message saying the destination folder is a Read-only file system. I initially thought that changing the file permissions would alleviate the issue, but it did not. What can I do to copy files from one folder to another? Here is the command I used:</p>
  <pre><code>cp sourceFolder/someFile.txt /destFolder
  </code></pre>
  <p>Error message:</p>
  <pre><code>cp: /destFolder: Read-only file system
  </code></pre>