I've just installed Debian Sid on my computer but I cannot mount external USB drives as you can see in the image.
Cannot mount "SENZATITOLO"
What should I do?
You are using a lightweight window manager. I've had this problem before in another such window manager. So it sounds like a problem with polkit to me. Does your system have a directory called
add the following lines:
now add yourself to the plugdev group:
logout and log back in. If it is polkit, you should be able to mount media now.