I created a backup file in Raspbian [on my Raspberry 2 Model B] which sits in the /home directory. I want to copy it to my USB stick to the /media/pi directory. The stick is formatted for EXT4. My Raspbian /root is also EXT4.
I tried using the File Manager to copy and paste but got a "Error opening file /mnt/pi/filename.tar.gz:Permission denied" message. I also ran cp from the terminal window and got the message "cp cannot create regular file '/media/pi/filename.tar.gz' : Permission denied". Here's that cp entry:
cp filename.tar.gz /media/pi
Clues would be greatly appreciated. Thank you very much ... Bill Cole