NFS share stopped working with 22.05

[Nebucatnetzer]

I have the following two NFS shares in my config:

• Nebucatnetzer/nixos - modules/data-share/default.nix at master - nixos - Gitea: Git with a cup of tea
• Nebucatnetzer/nixos - modules/restic-server/default.nix at master - nixos - Gitea: Git with a cup of tea

The data-share (the first one) still works without a problem.
The restic-server share however stopped working with 22.05.

I don’t really see what the problem is, it just times out. Both shares have the same permission and are on the same server.

When I revert the restic server back to 21.11 it starts working again.

I tried to use the same options as for the data-share but for some reason it doesn’t work.
Specifying the NFS version didn’t help either.

[peterhoeg]

Couple of things:

1. the options passed to mount are not the same. Might be work trying to align them to remove variables.
2. what happens when you try to manually mount using mount?

[Nebucatnetzer]

@peterhoeg

the options passed to mount are not the same. Might be work trying to align them to remove variables.

Thank you for your input.

I found the solution today on the Ubuntu and QNAP forums.
You have to explicitly set nfsvers=4.0 otherwise it doesn’t work with the current version of the QNAP os (5.0.x) .
However, I don’t know why the data-share share worked without that option.

https://ubuntuforums.org/showthread.php?t=2474184&p=14092325#post14092325
https://forum.qnap.com/viewtopic.php?f=35&p=812661#p812661