Hi Jeff, I believe this is a valid bug. I can reproduce it:
On Focal: $ sudo mount -t nfs4 -o vers=4.1 -vvv jammy-nfs-server:/ /mnt mount.nfs4: timeout set for Wed Apr 3 00:51:23 2024 mount.nfs4: trying text-based options 'vers=4.2,addr=192.168.122.217,clientaddr=192.168.122.9' On Jammy: $ sudo mount -t nfs4 -o vers=4.1 -vvv jammy-nfs-server:/ /mnt mount.nfs4: timeout set for Wed Apr 3 00:57:08 2024 mount.nfs4: trying text-based options 'vers=4.1,addr=192.168.122.217,clientaddr=192.168.122.213' I apologise for introducing this particular regression when I changed the version negotiation. Let me try and find a fix and build a test package. In the meantime, you can use a workaround of dropping "-t nfs4" and changing "mount" to "mount.nfs", i.e.: $ sudo mount.nfs -o vers=4.1 -vvv jammy-nfs-server:/ /mnt mount.nfs: timeout set for Wed Apr 3 00:51:59 2024 mount.nfs: trying text-based options 'vers=4.1,addr=192.168.122.217,clientaddr=192.168.122.9' I will write back shortly. Thanks, Matthew ** Also affects: nfs-utils (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: nfs-utils (Ubuntu) Status: New => Fix Released ** Changed in: nfs-utils (Ubuntu Focal) Status: New => In Progress ** Changed in: nfs-utils (Ubuntu Focal) Importance: Undecided => Medium ** Changed in: nfs-utils (Ubuntu Focal) Assignee: (unassigned) => Matthew Ruffell (mruffell) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2059197 Title: Issue with nfs4.0 mounts after upgrade to 3.6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/2059197/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs