How to configure nfs server on QNX 7.1

Target: QNX 7.1 running on a VM (VMware Workstation or VirtualBox). It is assummed that the targets are newly creaed VMs. Server target VM has an IP of 192.168.1.2, the client target has the IP of 192.168.1.3
Copy nfsd and portmap to the server target in /system/xbin, like:

C:\>ntox86_64-gdb.exe -ex "target qnx 192.168.1.2:8000" -ex "upload C:\qnx710\target\qnx7\x86_64\usr\sbin\nfsd /system/xbin/nfsd" -ex "quit"
C:\>ntox86_64-gdb.exe -ex "target qnx 192.168.1.2:8000" -ex "upload C:\qnx710\target\qnx7\x86_64\usr\bin\portmap /system/xbin/portmap" -ex "quit"

Add/edit /etc/netconfig

udp tpi_clts v inet udp - -
tcp tpi_cots_ord v inet tcp - -
udp6 tpi_clts v inet6 udp - -
tcp6 tpi_cots_ord v inet6 tcp - -
rawip tpi_raw - inet - - -
local tpi_cots_ord - loopback - - -
unix tpi_cots_ord - loopback - - -

Now define folder to be exported, you have to do this on the target.

# mkdir /data/export

Now create /etc/exports on the target. This maps to the real root user and allow connection only from 192.168.1.3

/data/export -root=0 192.168.1.3

Create /var/run, needed by portmap.

# mkdir /var/run

Now run portmap

# portmap

Verify running using pidin, like:

# pidin -faA | grep portmap

Now run nfsd

# nfsd

Verify nfsd running, like:

# pidin -faA | grep nfsd

To mount on the QNX 7.1 client, copy fs-nfs3 to the client target

C:\>ntox86_64-gdb.exe -ex "target qnx 192.168.1.3:8000" -ex "upload C:\qnx710\target\qnx7\x86_64\usr\sbin\fs-nfs3 /system/xbin/fs-nfs3" -ex "quit"

On the client QNX 7.1 target, mount the exported directory

# fs-nfs3 192.168.1.2:/data/exports /data2

Verify that you can write and read from /data2

# echo "Hello world" >> /data2/hello.txt
# cat /data2/hello.txt