I restored nfs-utils 1.x in the jammy client, and tried to mount again. It still fails. I don't think this is an nfs-utils problem:
ubuntu@j-nfs-dep8:~$ dpkg -l|grep nfs ii libnfsidmap2:amd64 0.25-6build1 amd64 NFS idmapping library ii nfs-common 1:1.3.4-6ubuntu1 amd64 NFS support files common to client and server ubuntu@j-nfs-dep8:~$ sudo -i root@j-nfs-dep8:~# mount f1:/storage /mnt -o udp -v mount.nfs: timeout set for Tue Mar 8 17:54:59 2022 mount.nfs: trying text-based options 'udp,vers=4.2,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,vers=4.1,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,vers=4.0,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,addr=192.168.122.197' mount.nfs: prog 100003, trying vers=3, prot=17 mount.nfs: trying 192.168.122.197 prog 100003 vers 3 prot UDP port 2049 mount.nfs: prog 100005, trying vers=3, prot=17 mount.nfs: trying 192.168.122.197 prog 100005 vers 3 prot UDP port 51873 mount.nfs: mount(2): Invalid argument mount.nfs: an incorrect mount option was specified ** Package changed: nfs-utils (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs