I'm attempting to edit the files on a SD card containing Raspbian on a Dell XPS 13 machine running Ubuntu. It doesn't have an internal SD card reader, so I use an external one.
When I plug in the SD card both partitions show up, but I'm not able to modify the files or add/delete from the drive without first logging in as a super user (gksu nautilus).
Why is this? Is there some user group that I need to be part of?