I have a 32 GB USB pendrive which I'd like to use as both a startup/installation disk for Ubuntu, and for regular file storage/transfer purposes. Since the Ubuntu installation stuff only needs a little under 3 GB, I thought this would be no problem, but it has turned out to be harder than I thought.
My plan was to create two partitions on the drive - one 4GB that I can wipe at any time and use for installation media, and one with the rest of the space that I can use for data (and won't have to wipe when I create a new installation disk). Creating the partitions posed no problems - gparted did that without complaining - but installing the Ubuntu installation stuff has turned out to be harder than I thought.
In the "Startup Disc Creator" program, I can't select the USB drive's partiions individually - just the entire drive. And if I don't press "Erase disk", I'm not allowed to start the installation. I've tried setting the "boot" flag on the partition I want to use, but it didn't matter. It seems the startup disc creator program isn't "partition aware" - is it? Or do I need to do this with another program?
Is there a way that I can create a bootable USB drive where just one partition is used for the installation media? How?