Issues - Beaglebone black Rev C

Hi,

Hope anyone will help me for the problem I am facing with my Beaglebone black.

1. I updated the board with latest debian image but later to work on opencv I have updated it with ubuntu image since then the board is not visible in my system as usb drive.

2. The node and bonescript are not supporting on the above said board after installed opencv to interface motor, camera and sensors

3. The board eMMC is full so I am unable to write or transfer the files from BBB to server to make space or delete files which I have installed on it

4. While using SD card for programming the expanding memory on sd card itself big headache and on PuTTY got fatal error: connection refused.

If you have any queries / suggestions please let me know and help me to pass on this hurdle.

Thanks & Regards,

Parvathi