We didn’t modify anything in kernel or rootfs, just using above 3 command on Xavier NX devkit with only NVMe connected.
You could also refer to the result of df -h in our case.
$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/nvme0n1p1 117G 5.5G 107G 5% /
none 3.4G 0 3.4G 0% /dev
tmpfs 3.4G 36K 3.4G 1% /dev/shm
tmpfs 686M 19M 668M 3% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 3.4G 0 3.4G 0% /sys/fs/cgroup
tmpfs 686M 76K 686M 1% /run/user/1000