During installation, the "Choose Location" screen reports the full size of the disk as available, and ignores anything else that is installed there. <img width="276" height="82" alt="Image" src="https://github.com/user-attachments/assets/d62e5cb8-0200-48f9-9301-e11e02e7fcb7" /> <img width="1144" height="307" alt="Image" src="https://github.com/user-attachments/assets/58ec397e-9220-41f6-9ed7-591284246059" />
During installation, the "Choose Location" screen reports the full size of the disk as available, and ignores anything else that is installed there.