NFS mount hung with 20.04.1-Ubuntu

Discussion about using NAS on Linux and Unix OS.
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foroga
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Posts: 11
Joined: Tue May 24, 2022 1:51 am

NFS mount hung with 20.04.1-Ubuntu

Post by foroga »

Suddenly my NFS conections fails after reboot the computer.
I tried to mount manualy but the command get hung without finish.
I use wireshark to see the dialog between the server and the client.
I see the NFS4ERR_DELAY
I don't know how to fix it, but I tried to use the 2/3 nfs version with the server configuration
After the change the mount works fine.

Could you help me to fix the NFS4ERR_DELAY in 4 nfs version?
Regards,
bdeus
First post
Posts: 1
Joined: Tue Apr 18, 2017 12:53 am

Re: NFS mount hung with 20.04.1-Ubuntu

Post by bdeus »

Same here since ubuntu 20.04 apt update
It seems to be a a bug on qnap side.
Add

Code: Select all

nfsvers=4.0
in the nfs options parameter on your /etc/fstab to override the >=4.1 bug
see this post: viewtopic.php?t=165385
foroga
Starting out
Posts: 11
Joined: Tue May 24, 2022 1:51 am

Re: NFS mount hung with 20.04.1-Ubuntu

Post by foroga »

Many thanks. It works using this option (nfsvers=4.0)
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