So, I need more help then. How do I change my settings so I can run projects off an external hard drive instead of the internal drive? I'm really just bumbling along...
It's not hard at all.
First, get an external drive (Firewire, USB2, e-sata) and hook it up to your Macbook.
If possible, use all or part of the drive (ie, partition) for Logic Projects.
Drive brands vary according to preference but ideally, I'd use a good brand hard drive that was 7200rpm that wasn't more than a Gig. -That's my personal preference, others may have a different opinion.
Move your project(s) to this new drive.
(Just to be clear, move ALL of the peripheral files that are with your actual Logic project file together. For example, if you have a project called "My Greatest Song," move the entire folder to this new drive and delete the original once you verify that it has been moved to the new drive. (This will prevent Logic from opening & continuing to write to the local hard-drive.)
I keep the Logic icon in my dock. Start the program there and when the splash-screen appears, (just after start up,) it will ask you what you wish to open.
Direct this interface to open the new "Logic Projects" folder on the new external drive. Logic will see this and open all the pertinent session files from here and will continue to write to this new drive.
Remember to hit "command + S" often, and have fun!
Others might have slightly different workflows, but this is what works for me.
Also note that I ALWAYS back up the contents of my Logic Projects drive to another external drive frequently as it is the only link to not losing EVERYTHING when that drive dies one day.
But, one step at a time...
😉
Hope this helps. Best of luck.