Unable to Mount NAS on New Kubuntu 20.04.1 LTS System

michaelk · 11-06-2020, 11:59 AM

To elaborate on computersavvy's post what is your current /etc/fstab line for the nfs share?

As stated if you use noauto as shown in your #1 post using mount -a will not try to mount the nfs share so it has been changed. I suspect there is still an error which is the reason your script does not work. In addition typically in the boot order the init process will mount the filesystems in /etc/fstab prior to network being up so network shares tend to fail which is why rebooting does not work. Using _netdev option will delay the mounting of your nfs share until the network is up.

I like to use autofs or x-systemd.automount which will only mount the share when I access the nfs mount point. Using timeout options prevent hangups...

globalsarge · 11-07-2020, 04:58 AM

Thank you sgosnell. I ran the commands (exportfs and the nfs-kernel-server restart as root from the NAS.

Back into my computer, I removed the "//" in front of the NAS IP address and ran:

Code:

$ sudo mount -av
/                        : ignored
/media/Data              : already mounted
mount.nfs: timeout set for Sat Nov  7 04:39:36 2020
mount.nfs: trying text-based options 'vers=4.2,addr=192.168.1.105,clientaddr=192.168.1.235'
/media/NAS               : successfully mounted
/media/tmpdisk           : already mounted

...and it works! was the problem with fstab the "//" in front of the NAS mount line?

Okay, so here is my updated fstab:

Code:

# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda2 during installation
UUID=9cb44c29-b632-4035-ab0c-26bab80761c3 /   ext4    errors=remount-ro 0    1
# /boot/efi was on /dev/sda1 during installation
#
# Data drive mount to /media/Data 
UUID=9d3f1ff1-99b4-418c-8dca-84916431f9d5 /media/Data  ext4  auto,exec,rw,noatime         0   2
#
# NAS server mount to /media/NAS. Script added to System Settings>Autostart to mount NAS if online.
192.168.1.105:/nas     /media/NAS    nfs    defaults,nofail,exec          0   0
#
# This line mounts a RAM disk for temp files storage to prevent unnecessary SSD writes.
tmpfs                 /media/tmpdisk  tmpfs   nodev,nosuid,noexec,nodiratime,size=1024M             0   0

So I rebooted my computer to see if fstab would automatically mount the NAS and it did!

So now, the mount script fstab-mount-nas. I unmounted the NAS then run the script. No joy! NAS is not mounted. Here is the file for review:

Code:

!/bin/bash
#fstab_Mount NAS
# script to mount NAS if it's powered on
if [ ping -c1 -w3 192.168.1.105 >/dev/null 2>&1 ]
  then
    mount 192.168.1.105:/nas /media/NAS
    echo "NAS is mounted to /media/NAS"
  else
    echo "NAS is not mounted"
fi

2 down and 1 to go.

globalsarge · 11-07-2020, 05:18 AM

Okay, so I realized I needed to mount my NAS after the script failed and since the fstab works, I entered:

Code:

sudo mount /media/NAS

...and it works! Then I unmounted the NAS and rebooted the NAS. When it was back up, I ran the command again, sudo mount /media/NAS and it works! I really don't have any need for the script since I can sudo mount and umount commands to mount and unmount the NAS.

Unless anyone has any other concerns or issues, I'll mark this thread SOLVED later today.

sgosnell · 11-07-2020, 08:53 AM

Use bg in the options in fstab, and it will continue to try to mount the NFS shares in the background if it can't mount them initially. You really don't need the script. My devices automatically remount the share if the server goes down and comes back up.

I didn't see a // in your fstab, but yes, that is a problem. I saw it in the error messages but couldn't figure out where it was coming from. I coudn't keep up with the changes you made as time went on.

computersavvy · 11-07-2020, 09:38 AM

Quote:

Originally Posted by globalsarge

Okay, so I realized I needed to mount my NAS after the script failed and since the fstab works, I entered:

Code:

sudo mount /media/NAS

...and it works! Then I unmounted the NAS and rebooted the NAS. When it was back up, I ran the command again, sudo mount /media/NAS and it works! I really don't have any need for the script since I can sudo mount and umount commands to mount and unmount the NAS.

Unless anyone has any other concerns or issues, I'll mark this thread SOLVED later today.

In addition to what sgosnell has said, if you want to be able to mount it without using sudo then add in the "user" option in fstab after which your regular user will be able to mount and unmount it. Without that your regular user could not run the script and successfully mount the NAS.