I increased my Boot Volume from 51 gb to 102 gb. It got extended but is not reflecting in my vm. My VM is still showing 100 used out of 51gb.
I also ran this command:
sudo dd iflag=direct if=/dev/oracleoci/oraclevda of=/dev/null count=1
echo "1" | sudo tee /sys/class/block/`readlink /dev/oracleoci/oraclevda | cut -d'/' -f 2`/device/rescan