Forums » Support »
Open failed on >----.nc< Unknown Error
Added by izabelle novicki iza over 1 year ago
Hi. I installed cdo version with support for NetCDF4 (HDF5) on Ubuntu 9.3.0-17ubuntu1~20.04 on x86_64-pc-linux-gnu system. The data I'm using is NetCDF4. The installation went perfectly, I tried opening other .nc files and it worked. However, when I try to open this data, an unknown error message appears. Does anyone know what it could be? 'cdo showformat' and 'ncdump' command not responding
This could be a problem of permissions. Try to use sudo
does not work too 
Hi Izabelle,
I know you replied in several posts, but I am going to reply only here to prevent cross postting and unnecessary notifications to other users. That error it is a bit troublesome and it may be not related to cdo because your ncdump command does not work either. Lets start from the very bottom to see if we can debbug it. From here onwards, I am going to assume two things:
ncdump works in windows but not in linux
you are using a computer with ubuntu or a virtual machine with ubuntu. I case of virtual machine, you are not using WSL1.
First check your netcdf version. Users reported that the netcdf version 4.5.0 had some bugs and ncdump produces that error.
Second write ls lt. This will output the permissions of your files in that folder. if it appears as "---------" means that your file does not have permissions so you will have to do sudo chmod 755 yourfile.nc
Lets start with this. It is really suspicious that your only have problems in ubuntu
Kind regards,
Estanislao
sorry, I forgot about the website format
Second write "ls -ltr". This will output ...