The 'use entire partition' option is being preseeded to partman as button for it is being set insensitive, which is currently how the GTK portion of the plugin checks to see if it's going to use the entire partition or resize it.
The 'use entire partition' option is being preseeded to partman as button for it is being set insensitive, which is currently how the GTK portion of the plugin checks to see if it's going to use the entire partition or resize it.