Fix "Stale File Handle" NFS Error

Understanding the Error

Stale file handle
NFS: Stale NFS file handle

NFS file handle no longer valid (file/directory was removed or server restarted).

Fix 1: Remount NFS Share

# Unmount
sudo umount /mount/point

# If busy, force unmount
sudo umount -f /mount/point
sudo umount -l /mount/point  # Lazy unmount

# Remount
sudo mount /mount/point

Fix 2: Remount with fstab

# Remount all from fstab
sudo mount -a

# Or specific
sudo mount -o remount /mount/point

Fix 3: Restart NFS Client Services

# Ubuntu/Debian
sudo systemctl restart nfs-common
sudo systemctl restart rpcbind

# CentOS/RHEL
sudo systemctl restart nfs-client
sudo systemctl restart rpcbind

Fix 4: Clear NFS Cache

# On client
echo 3 > /proc/sys/vm/drop_caches

# Reboot client if needed

Fix 5: Check Server Exports

On NFS server:

exportfs -v
# Is directory still exported?

sudo exportfs -ra  # Re-export all

Fix 6: Use Hard Mount with Intr

In /etc/fstab:

server:/export /mount nfs hard,intr,timeo=600 0 0

Prevent Future Issues

• Don't delete directories while they are in use
• Use soft mounts or timeouts
• Regularly check NFS health