Mounting filesystem on a MIC using NFS

Dear forumers,

I'm trying to mount some directories from the host on the MIC cards using NFS. 

I followed step by step the guide there.
https://software.intel.com/sites/default/files/article/373934/system-administration-for-the-intel-xeon-phi-coprocessor.pdf

My aim was to mount:

(host side)   (mic side)
/opt/intel -> /opt/intel
/home      -> /host

Following the guide, I modified exports
 

[root@terminus filesystem]# cat /etc/exports
#/home/shared    192.168.1.100/24(rw,no_root_squash)
/opt/intel 172.31.1.1(rw,no_root_squash)
/opt/intel 172.31.2.1(rw,no_root_squash)
/home 172.31.1.1(rw,no_root_squash)
/home 172.31.2.1(rw,no_root_squash)

and hosts.allow
 

[root@terminus filesystem]# cat /etc/hosts.allow
#
# hosts.allow    This file contains access rules which are used to
#        allow or deny connections to network services that
#        either use the tcp_wrappers library or that have been
#        started through a tcp_wrappers-enabled xinetd.
#
#        See 'man 5 hosts_options' and 'man 5 hosts_access'
#        for information on rule syntax.
#        See 'man tcpd' for information on tcp_wrappers
#
ALL: 172.31.1.1
ALL: 172.31.2.1

Then I executed the exportfs -a command.

Following the guide, I tried both the micdir and commondir approaches (see page 22). For example, in the commondir case, I created a file fstab under /opt/intel/mic/filesystem/common/etc as following:
 

[root@terminus filesystem]# cat /opt/intel/mic/filesystem/common/etc/fstab
devpts        /dev/pts    devpts    defaults        0 0
tmpfs        /dev/shm    tmpfs    defaults        0 0
sysfs        /sys        sysfs    defaults        0 0
proc        /proc        proc    defaults        0 0
host:/home     /host         nfs     rsize=8192,wsize=8192,nolock,intr 0 0
host:/opt/intel    /opt/intel      nfs     rsize=8192,wsize=8192,nolock,intr 0 0

and
 

[root@terminus filesystem]# cat /opt/intel/mic/filesystem/common/common.filelist
dir /opt/intel 755 0 0
dir /host 755 0 0
file /etc/fstab etc/fstab 664 0 0

Finally I execute the micctrl --resetconfig and I would expect to find the nfs filesystem mounted on the mics but...

[root@terminus filesystem]# service mpss stop
Shutting down Intel(R) MPSS:                               [  OK  ]
[root@terminus filesystem]# micctrl --resetconfig
[Warning] mic0: Generating compatibility network config file /opt/intel/mic/filesystem/mic0/etc/sysconfig/network/ifcfg-mic0 for IDB.
[Warning]       This may be problematic at best and will be removed in a future release, Check with the IDB release.
[Warning] mic1: Generating compatibility network config file /opt/intel/mic/filesystem/mic1/etc/sysconfig/network/ifcfg-mic0 for IDB.
[Warning]       This may be problematic at best and will be removed in a future release, Check with the IDB release.
[root@terminus filesystem]# service mpss start
Starting Intel(R) MPSS:                                    [  OK  ]
mic0: online (mode: linux image: /usr/share/mpss/boot/bzImage-knightscorner)
mic1: online (mode: linux image: /usr/share/mpss/boot/bzImage-knightscorner)
[root@terminus filesystem]# ssh mic0
[root@terminus-mic0 ~]# ls /
bin    boot   dev    etc    home   init   lib    lib64  media  mnt    proc   root   sbin   sys    tmp    usr    var
[root@terminus-mic0 ~]# cat /etc/fstab
rootfs        /        auto        defaults        1  1
proc        /proc        proc        defaults        0  0
devpts        /dev/pts    devpts        mode=0620,gid=5        0  0

... nothing... as you can see, the fstab doesn't show that I wanted to mount...
 

Can somebody point out some errors in the procedure that I followed?

Thanks in advance,

Fabio