Automount NFS Share

Bluefin
1

Hello,

I have a TrueNAS Core server with an NFS share:

showmount --exports nas.example.internal
Export list for nas.example.internal:
/mnt/tank/share (everyone)

There is a directory where the share will be mounted:

ls -lA /mnt/
total 0
drwxr-xr-x. 1 user user 10 Jul 21 09:55 nas

I am able to mount the share:

sudo mount nas.example.internal:/mnt/tank/share /mnt/nas/share
Created symlink /run/systemd/system/remote-fs.target.wants/rpc-statd.service → /usr/lib/systemd/system/rpc-statd.service.

but then there is no way I could unmount it (not even after restarting the laptop):

sudo umount /mnt/nas/share

The test1 directory is still there:

ls -lA /mnt/nas/share
total 0
drwxr-xr-x. 1 user user 0 Jul 21 10:06 test1

It even shows in “Gnome Files”, and I can add / edit / remove files, just like it was still mounted.

Re-issuing:

sudo umount /mnt/nas/share

returns:

umount: /mnt/nas/share: not mounted..

Am I missing something?

The final goal is to automount this share when the computer boots up, by using a systemd mount unit.

2

I made this scriptbin for my nixos. perhaps create a alias to point to this script everytime u want to un mount

    #!/bin/bash
    # Tolga Erok

    echo -e "\033[34m" # Set text color to blue
    echo "Unmounting all mount points"
    echo -e "\033[1;37m"

    # unmount a directory
      unmount_directory() {
      local dir="$1"

    # see if the directory is already unmounted
      if ! mountpoint -q "$dir"; then
        echo "$dir is already unmounted"
      return 0
      fi

    # Unmount mnt share's
      sudo umount -f /mnt/*
      sudo umount -l /mnt/*

    # Unmount media share
      sudo umount -f /media/*
      sudo umount -l /media/*

    # Unmount the directory
      sudo umount -lf "$dir"

     # Wait until the directory is unmounted
      while mountpoint -q "$dir"; do
        sleep 1
      done

    # Check if unmounting was successful
      if mountpoint -q "$dir"; then
        echo "Unmounting $dir failed"
      return 1
    fi

      return 0
    }

    # Unmount all directories listed in /etc/fstab under /mnt
      while IFS= read -r mount_point; do
        if [[ "$mount_point" =~ /mnt/ ]]; then
          unmount_directory "$mount_point"
        fi
      done < <(awk '$2 ~ /^\/mnt/ {print $2}' /etc/fstab)

    # Unmount all directories listed in /etc/fstab under /media
      while IFS= read -r mount_point; do
        if [[ "$mount_point" =~ /media/ ]]; then
          unmount_directory "$mount_point"
        fi
      done < <(awk '$2 ~ /^\/media/ {print $2}' /etc/fstab)

    # Check if any unmounts failed
      failed_unmounts=false

      if [[ $(mount | grep -E '^/mnt/|^/media/' | wc -l) -ne 0 ]]; then
        echo "Unable to unmount all filesystems under /mnt and /media"
        failed_unmounts=true
      fi

      if ! $failed_unmounts; then
        echo -e "\033[1;33m"
        echo "Unmounting done."
      fi

      exit 0
3

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