but basically gnome-control-center currently ignore removable devices because it shouldn't account for a connected usb stick or sdcard as system capacity
one suggested heuristic tweak that could fix the raspi case is 'Use the size of the disk with a partition mounted at / only if there are no non-removable devices.'
On the disk issue, there are some related discussion on https:/ /gitlab. gnome.org/ GNOME/gnome- control- center/ -/issues/ 633
but basically gnome-control- center currently ignore removable devices because it shouldn't account for a connected usb stick or sdcard as system capacity
one suggested heuristic tweak that could fix the raspi case is 'Use the size of the disk with a partition mounted at / only if there are no non-removable devices.'