$ vagrant ssh f30-vagrant
Last login: Mon Feb 10 13:46:35 2020 from 10.0.2.2
[vagrant@f30-vagrant ~]$ cat /etc/fstab 

#
# /etc/fstab
# Created by anaconda on Fri Apr 26 02:02:31 2019
#
# Accessible filesystems, by reference, are maintained under '/dev/disk/'.
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info.
#
# After editing this file, run 'systemctl daemon-reload' to update systemd
# units generated from this file.
#
UUID=7e3d6ae2-dd83-463f-a52e-446c1e192686 /                       ext4    defaults        1 1
[vagrant@f30-vagrant ~]$ free -m
              total        used        free      shared  buff/cache   available
Mem:           7974         117        7420           0         435        7625
Swap:             0           0           0