On 24 September 2015 at 20:55, Adriano Verardo <adriano.verardo@mail.com>
wrote:

> B->A woks, A->B doesnt.
> Probably there is something wrong on A, not in exportfs.
>

You need /mnt/exportfs with a set of numbered directories in it, which
might be missing on A:

% ls /mnt/exportfs
/mnt/exportfs/0
/mnt/exportfs/1
/mnt/exportfs/10
/mnt/exportfs/11
/mnt/exportfs/12
/mnt/exportfs/13
/mnt/exportfs/14
/mnt/exportfs/15
/mnt/exportfs/16
/mnt/exportfs/2
/mnt/exportfs/3
/mnt/exportfs/4
/mnt/exportfs/5
/mnt/exportfs/6
/mnt/exportfs/7
/mnt/exportfs/8
/mnt/exportfs/9