NFS share readonly, although set to rw on fstab

you need a separator between vers=4.2 and soft:

192.168.0.3:/home/bruno/share  /home/bruno/share  nfs vers=4.2,soft,noauto,rw,users,timeo=100,retrans=200  0  0

My is:

192.168.0.56:/home/stephan/NFS /home/stephan/NFS nfs vers=4,rw,noauto,user 0 0