Critical error when upgrade firmeware disk full

My Cloud OS 3 Personal & Network Attached Storage My Cloud EX4
1

I was doing Firmware upgrade from Terminal as web panel somehow not working

see the error below
updateFirmwareFromFile.sh My_Cloud_LT4A_2.11.140.bin
cp: write error: No space left on device
/mnt/USB/USB2_e1 # killall: quotacheck: no process killed
killall: op_server: no process killed
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full
Error: database or disk is full

2

Post the output of the command “df”