I mounted my external disk to wrong directory (wanted it to be ~/bitcoinData) , instead ended up creating a directory on SD card ( /home/pi/bitcoinData ) and now SD card (root) is full. i cannot seem to delete SD card bitcoinData directory (permission denied). how do i fix this? and link hdd to correct directory?
-datadir=/path/to/folder/
in the command line when starting bitcoind.sudo rm -r path/bitcoin