voila le résultat des différentes commandes:
systemctl restart nfs.service
A dependency job for nfs-server.service failed. See 'journalctl -xn' for details.
systemctl status nfs.service
nfs-server.service - NFS Server
Loaded: loaded (/usr/lib/systemd/system/nfs-server.service; disabled)
Active: failed (Result: exit-code) since Wed 2013-01-16 14:11:35 CET; 27s ago
Process: 1331 ExecStart=/usr/sbin/rpc.nfsd $RPCNFSDARGS $RPCNFSDCOUNT (code=exited, status=1/FAILURE)
Process: 1328 ExecStartPre=/usr/sbin/exportfs -r (code=exited, status=0/SUCCESS)
Process: 1322 ExecStartPre=/usr/lib/nfs-utils/scripts/nfs-server.preconfig (code=exited, status=0/SUCCESS)
Jan 16 14:11:35 projet-666 systemd[1]: Dependency failed for NFS Server.
Jan 16 14:11:35 projet-666 rpc.nfsd[1331]: rpc.nfsd: Unable to access /proc/fs/nfsd errno 2 (No such file or directory).
Jan 16 14:11:35 projet-666 rpc.nfsd[1331]: Please try, as root, 'mount -t nfsd nfsd /proc/fs/nfsd' and then restart rpc.nfsd to correct the problem
Jan 16 14:11:35 projet-666 systemd[1]: nfs-server.service: main process exited, code=exited, status=1/FAILURE
Jan 16 14:11:35 projet-666 systemd[1]: Unit nfs-server.service entered failed state
mount -t nfsd nfsd /proc/fs/nfsd
mount: unknown filesystem type 'nfsd'
mount |grep proc
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=30,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
uname -a
Linux projet-666 3.6.10-4.fc18.i686 #1 SMP Tue Dec 11 18:24:49 UTC 2012 i686 i686 i386 GNU/Linux