I got around to getting my MacBook to mount an NFS filesystem from my Linux server. There’s a nice set of instructions on using the Directory Utility to do so. The problem stumping me was:

And the bit of magic that eluded me before was adding the “-P” option:

Directory Utility.png

Unfortunately, my uid on my MacBook is 500 and on my Linux server it is 1000.
There’s an option for more recent implementations of NFS that allow the
/etc/exports file to include a ‘map_static=”/etc/nfs_map”‘ option to specify a
uid mapping but it’s not available in OpenSuse.