"No space left" error during AWS course setup

I’ve been following the AWS setup tutorial here: https://course.fast.ai/start_aws.html#step-4-launch-an-instance

When I get to the following step:

conda install -c pytorch -c fastai fastai pytorch torchvision cuda92

I get this error:


I stopped the instance and started again, ran the lsblk:

I thought 75G would be enough for the setup. When I reran the command I get the following:

What am I missing?