The NFS client in the Measy should be working. Do you want the Measy to be an NFS server? An NFS server requires a specific kernel option to be enabled and I don't think any of the RTK1186 players have that kernel. I could be wrong.
I think the CS custom firmware is the only custom firmware for the Measy X5. There might be more because they aren't too difficult to modify if you have Linux experience. There is a firmware for the HiMedia by OllyP except the installer wouldn't be compatible with the Measy.
I have the Micca EP950 with the 1186 and I have been using the CS custom firmware made for the HiMedia HD900B. The CS firmware for the Measy X5 available at w2comp should be about the same as the CS for the HiMedia. I have looked inside the install.img for several of the CS custom firmwares and they look about the same inside the squashfs.img.
I have just tested the NFS function used by the player to mount a remote directory and fetch files and that is now working for me. I had to enable the NFS server on my Debian box and now the player can find those files properly. Is that what you wanted? Edit: The player can play the files over NFS not copy them or perform the file operations. That is similar to UPnP not Samba. There is no Green button with NFS.
I really like the CS custom firmware. You have telnet, bftpd and ssh available and already setup. There is the ipkg system installed and you can choose from many packages to install. You would have to telnet or ssh into the Measy and run the installer. The CS firmware uses the 4GB read-write flash so the system can be customized very easily where the factory firmware is mostly read-only and cannot be changed except by rebuilding the firmware. I use my mc file manager program to connect using the ftp protocol and that should be very similar to NFS except you can't mount a directory. I really recommend the CS custom firmware if you know Linux and want to tweak the player.
If you want the Measy to serve files by NFS then I don't think that is going to be possible unless the kernel was originally built to support the kernel NFS server. I don't know if any of the 1186 players can do that. I would like to know for sure if that is actually possible.
I just tried to use the ipkg program to install hdparm and found the /opt directory is read-only in the CS firmware. I did this to fix the problem:
rm /opt cp -a /system/rtk_rootfs/opt /data/ ln -s /data/opt /opt /opt/bin/ipkg update /opt/bin/ipkg install hdparm
Edited by mods41 - 11/27/12 at 5:55pm