The test is done with a netcdf4 file from here - http://rain.ucis.dal.ca/ctm/GEOS_0.5x0.625_NA.d/MERRA2/1980/01/MERRA2.19800101.A1.05x0625.NA.nc4
>From 20.04 nfs server v3 mount test - mount -t nfs -o vers=3 192.168.1.225:/nfs /tmp/test/ ncdump -h -s MERRA2.19800101.A1.05x0625.NA.nc4|tail -2 ncdump: MERRA2.19800101.A1.05x0625.NA.nc4: MERRA2.19800101.A1.05x0625.NA.nc4: NetCDF: HDF error v4 mount test - mount -t nfs -o vers=4 192.168.1.225:/nfs /tmp/test/ ncdump -h -s MERRA2.19800101.A1.05x0625.NA.nc4|tail -2 :_Format = "netCDF-4" ; } It works fine. >From 18.04 nfs server - v3 mount test - ncdump -h -s MERRA2.19800101.A1.05x0625.NA.nc4 |tail -2 :_Format = "netCDF-4" ; } Works fine as expected. So something has changed between 18.04 and 20.04 that breaks v3 mounts it seems. Thanks. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903974 Title: issue reading netcdf4 files with nfs v3 on ubuntu 20.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1903974/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs