hdd has a previous version of Kubuntu, I am planning to use it for data. I was wondering if there is a simple way of making it available just to me as an ordinary user retaining the UUID system for security.
Do you care about the contents of the filesystem as it is, or do you wish to wipe it completely? If you don't care, you have a couple of options - you can format the filesystem. This will change the UUID, so you'll need to find the new UUID and update the /etc/fstab entry regarding this. Or you can just delete it. If you really truly don't care about the old kubuntu install, then do the following commands in a terminal window as the root user (or via the sudo command) assuming it's mounted on /media/hdd2, and your username is roderick: chown -R roderick: /media/hdd2 chmod -r u+rw /media/hdd2 The "chown" command recursively (-R) changes the ownership of /media/hdd2 to roderick The "chmod" command recursively (-r this time) grants read/write access to the user who owns /media/hdd2. This step isn't strictly speaking neccesary, but it won't hurt.