Uupdbin Sd Card !!exclusive!! -

: The primary symptom is the SD card losing its reported capacity and reverting to a small partition, typically around 1.86GB or 13MB .

Assuming "uupdbin" is a typo for (a common bootloader file used in embedded Linux systems), here are a few drafts depending on what you are trying to achieve. uupdbin sd card

sync sudo umount /dev/sdX