I've run into this issue when using NFS mounts via Vagrant which uses NFSv3 and UDP by default. Relevant issues: https://github.com/hashicorp/vagrant/issues/12758 https://github.com/hashicorp/vagrant/issues/13078 Vagrant can be forced to use TCP to work around the issue, but UDP is preferred due to being faster than TCP for this particular use case. https://developer.hashicorp.com/vagrant/docs/synced-folders/nfs#nfs-synced-folder-options Looks like if I want to keep using UDP I'll need to stick with 20.04 for now, but it would be nice if it weren't disabled in 22.04.
** Bug watch added: github.com/hashicorp/vagrant/issues #12758 https://github.com/hashicorp/vagrant/issues/12758 ** Bug watch added: github.com/hashicorp/vagrant/issues #13078 https://github.com/hashicorp/vagrant/issues/13078 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore Status in linux package in Ubuntu: Confirmed Bug description: Package: nfs-kernel-server Architecture: amd64 Version: 1:2.6.1-1~exp1ubuntu1 nfsversion 3 with proto udp seems not to be supported by the nfs- kernel-server anymore. In Ubuntu 18.04 (nfs-kernel-server 1:1.3.4-2.1ubuntu5) it was still possible. I could mount with either tcp or udp: 1. tcp mount -o nfsvers=3 192.168.0.1:/srv/nfs/testshare /mnt mount|grep mnt: 192.168.0.1:/srv/nfs/testshare on /mnt type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=192.168.0.1,mountvers=3,mountport=59808,mountproto=udp,local_lock=none,addr=192.168.0.1) 2. udp mount -o nfsvers=3,udp 192.168.0.1:/srv/nfs/testshare /mnt mount|grep mnt: 192.168.0.1:/srv/nfs/testshare on /mnt type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=udp,timeo=11,retrans=3,sec=sys,mountaddr=192.168.0.1,mountvers=3,mountport=59808,mountproto=udp,local_lock=none,addr=192.168.0.1) Now in Ubuntu 22.04 I get the message: mount.nfs: an incorrect mount option was specified I tried to enable upd in /etc/nfs.conf in section [nfsd]: [nfsd] # debug=0 # threads=8 # host= # port=0 # grace-time=90 # lease-time=90 # udp=n udp=y # tcp=y # vers2=n # vers3=y But there was no effect. nfs3 with udp is needed by several busybox mount binaries in initrds of Knoppix and other live distributions used via PXE boot. Best regards Jörg To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
