tshark -r nfs-debug.pcap -Y "nfs.status == 45" -V Look for the opcode (e.g., OP_OPEN , OP_GETATTR ) and opattr – that’s your culprit. Then refer to the to see if your server should support that operation. Part 5: Real-World Case Study – Making NFS VLTED 45 Work in a VMware Environment A Reddit user (source: r/vmware) once posted: "NFS datastore shows 'VLTED 45' in vmkernel.log – cannot power on VM."
server:/export /mnt/nfs nfs defaults,vers=4.0 0 0 You can instruct the NFS client to ignore unsupported attributes by adjusting mount options: nfs vlted 45 work
sudo systemctl restart nfs-server sudo exportfs -rav Also verify the server’s NFS version support: tshark -r nfs-debug
uname -r If < 4.15, upgrade or disable pNFS with -o nopnfs . When the basic steps fail, get surgical. Use tcpdump to see the actual NFS call that returns error 45 . When the basic steps fail, get surgical
On the client (as root):
# Remount with NFSv4.0 only sudo mount -t nfs -o vers=4.0 server:/export /mnt/nfs sudo mount -t nfs -o vers=3 server:/export /mnt/nfs
If you’ve landed on this article, you’ve likely encountered the cryptic phrase "nfs vlted 45 work" during a late-night troubleshooting session, a system log review, or a forum deep-dive. You’re not alone. This string of characters—combining a core networking protocol (NFS), a peculiar term (VLTED), a number (45), and a desperate plea (work)—represents one of the most confusing error clusters in modern IT infrastructure.