What is the line in your /etc/fstab?
My /etc/fstab has the following:
/dev/mapper/vgfedora-fedora / ext4 defaults,x-systemd.device-timeout=0 1 1
UUID=4d112d8e-080d-44f2-8962-9c13f20a7885 /boot ext4 defaults 1 2
UUID=041A-E511 /boot/efi vfat defaults,uid=0,gid=0,umask=077,shortname=winnt 0 2
/fedora.swap none swap sw 0 0