Ryan, I think you are experiencing
https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/2059197 which
is a regression on focal from a previous update that also tried to
address the version negotiation. There is a new nfs-utils package in
focal-proposed to address that, would you mind trying it out? The
instructions are in that bug.
** Package changed: util-linux (Ubuntu) => nfs-utils (Ubuntu)
** Changed in: nfs-utils (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2063381
Title:
NFS Client can't mount via NFS version 4.0
Status in nfs-utils package in Ubuntu:
Incomplete
Bug description:
When specifying vers=4.0 or nfsvers=4.0 in NFSv4 mount options, the
client ends up using version 4.2 instead. This option seems to be
ignored.
This happens with pam_mount and manual mount. We have been using
pam_mount for years with the option vers=4.0, but now it appears to be
broken. Just recently noticed this is happening while troubleshooting
root causes of some other issues on our servers.
Test: mounting manually with option: minorversion=0, the client does not
mount, no errors are seen with -vvv, no errors in logs either, it just fails
silently.
With pam_mount this option fails as well but is logged as mount failed into
auth.log
ex: Apr 24 17:15:22 servername sshd[666278]: (pam_mount.c:522): mount of
/mnt/nfs/home/admin_username failed
other nfs4 mount options we are using:
sec=krb5p,noatime,nodiratime,async
I see that something similar was fixed in autofs, but this is not autofs
related, as we do not use it. https://bugs.launchpad.net/bugs/1818121
Found a similar [oracle] issue but cannot read it=
https://support.oracle.com/knowledge/Oracle%20Linux%20and%20Virtualization/2528012_1.html
---
Description: Ubuntu 20.04.6 LTS
Release: 20.04
---
util-linux:
Installed: 2.34-0.1ubuntu9.6
Candidate: 2.34-0.1ubuntu9.6
Version table:
*** 2.34-0.1ubuntu9.6 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64
Packages
100 /var/lib/dpkg/status
2.34-0.1ubuntu9 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
mount:
Installed: 2.34-0.1ubuntu9.6
Candidate: 2.34-0.1ubuntu9.6
Version table:
*** 2.34-0.1ubuntu9.6 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
500 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64
Packages
100 /var/lib/dpkg/status
2.34-0.1ubuntu9 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
nfs-common:
Installed: 1:1.3.4-2.5ubuntu3.6
Candidate: 1:1.3.4-2.5ubuntu3.6
Version table:
*** 1:1.3.4-2.5ubuntu3.6 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:1.3.4-2.5ubuntu3.3 500
500 http://us.archive.ubuntu.com/ubuntu focal-security/main amd64
Packages
1:1.3.4-2.5ubuntu3 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
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