Dear AWS,
I was starting a POD on a Bottlerocket (x86, latest 1.4.0-42360701) Node. Yes, the AWS NFS driver is installed in my cluster. The POD could not start because it could not mount the nfs (it is missing /sbin/mount.nfs). Using the latest Amazon Linux (x87, latest 1.21.5-20211109) did work as expected.
I hope this helps. Wanted to give Bottlrocket a try - no success yet ;-).
Regards,
thorsten