I notice that when I log into my user account, the system tries to auto-mount some of the partitions of the USB hard drive. One of the partitions is the one that I use for backups, and I'd prefer not to have it mounted more often than I needed it to, for security. Also, I'd rather not have it listed in /etc/fstab (which could keep it from being auto-mounted, but also means it will get mounted if someone manages to run 'mount -a' on my system).
Could someone give me a few directions on how to disable auto-mounting for this partition, please?
EDIT: Found what I needed: https://help.ubuntu.com/community/Mount/USB
If anyone else has the same issue, just run "sudo apt-get install dconf-tools" in a terminal without the quotes, and then follow the Configuring Automounting section of the above guide.