Comment 1 for bug 110763

This appears to happen only on the live CD, not when it's installed

This bug often gets in the way when trying to make changes to the partitions (e.g. deleting a partition and then resizing another partition), because all partitions get mounted automatically and they need to be not mounted for Gparted to do its job. I can prevent this from happening by killing gnome-volume-manager before starting Gparted.