Cannot mount NFS share as user or root

[Nathan Dehnel]

bash-5.0$ mount /media/store
mount: /media/store: bad option; for several filesystems (e.g. nfs,
cifs) you might need a /sbin/mount.<type> helper program

/etc/config.scm:

(file-system
             (mount-point "/media/store")
             (device "gentooserver:/")
             (type "nfs4")
             (mount? #f)
             (create-mount-point? #t)
             (options "rw,_netdev,noauto,user,lazytime,exec,tcp"))

/etc/fstab:

gentooserver:/ /media/store nfs4 rw,_netdev,noauto,user,lazytime,exec,tcp

nfs-utils is installed:

bash-5.0$ guix package -i nfs-utils
The following package will be upgraded:
   nfs-utils 2.4.2 → 2.4.2
/gnu/store/chmbpkh0gvvmdhgwjw7rpl63f99mv7i6-nfs-utils-2.4.2

nothing to be done