Re-flashing, Memory Increase

Hi Everyone
I recently purchased NIVIDIA Jetson Developer Kit (Nano). I used a 16GB SD (UHS-1) card for flashing my Jetson and followed all the instruction as per the website. I was successfully able to boot and run Ubuntu. I ran into low memory when I installed some libraries as I had free space of 2GB.

I’m quite new to this technology and would be helpful if someone answers the following questions

  1. I understand that my kernel is built on the present SD card (16GB). How can I use a new SD card with more memory? What are the steps should follow to reflash and use a new SD card?
  2. What are the requirements should I consider while buying a new SD card (like storage, type)?

Regards,
Sathish

Duplicate thread. See:
https://devtalk.nvidia.com/default/topic/1056044/