Can't mount FreeNAS NFS share onto Ubuntu 20.04

[Hominid999]

Built a new Ubuntu server, but can't mount my Freenas share... I get the error message:

root@pollux-3:/# mount -a
mount.nfs: access denied by server while mounting 192.168.2.1:/mnt/tank

Been working fine for years from my older 16.04 server. Installed nfs-common on the new one. Here's the fstab entry (same as the 16.04 server...):

192.168.2.1:/mnt/tank /tank nfs defaults,nfsvers=3,noacl,rsize=32768,wsize=32768 0 0

If I force it to use version 4, it'll mount, but I get an input/out error on any operation in the mount point:
ls: reading directory '/tank': Input/output error

Here is the exports file on the FreeNAS server:
V4: / -sec=sys
/mnt/tank -alldirs -maproot="root":"" -sec=sys 192.168.1.215 192.168.2.4 192.168.2.5 192.168.3.2 192.168.1.212 192.168.1.216

Been down many google rabbit holes - seems like a common issue with no clear resolution.

 

[OzBarge]

Did you ever find a solution for this?

 

[Samuel Tai]

You can't share out the root dataset in a pool; it's reserved for system use. Please create a daughter dataset for NFS sharing.

Path to Success for Structuring Datasets in Your Pool

Path to Success for Structuring Datasets in Your Pool So you've got a shiny new FreeNAS server, just begging to have you create a pool and start loading it up. Assuming you've read @jgreco's The path to success for block storage sticky, you've decided on the composition of your pool (RAIDZx vs...

www.truenas.com

 

[OzBarge]

You can't share out the root dataset in a pool; it's reserved for system use. Please create a daughter dataset for NFS sharing.

Path to Success for Structuring Datasets in Your Pool

Path to Success for Structuring Datasets in Your Pool So you've got a shiny new FreeNAS server, just begging to have you create a pool and start loading it up. Assuming you've read @jgreco's The path to success for block storage sticky, you've decided on the composition of your pool (RAIDZx vs...

www.truenas.com

I've created 4 datasets under the pool.

shared from Truenas: /mnt/Media Pool/4K-Movies

Media Pool is the Pool
4K-Movies is the dataset

 

[Samuel Tai]

Your pool name has a space. This will cause problems sharing. Your client system may need an fstab entry like this:

<your TrueNAS IP>:/mnt/Media\ Pool/4K-Movies <local mount path> nfs defaults,nfsvers=3 0 0

 

[OzBarge]

I was using:
192.168.1.9:/mnt/Media\040Pool/4K-Movies /media/Truenas-4K-Movies nfs defaults,nfsvers=3 0 0

Let me change it around

 

[OzBarge]

I was using:
192.168.1.9:/mnt/Media\040Pool/4K-Movies /media/Truenas-4K-Movies nfs defaults,nfsvers=3 0 0

Let me change it around

Removing the \040 and replacing with just \ errors out, parse error.

I know the space is probably a headache, i've already copied over data via SMB so I don't want to recreate the pool if I don't have to.

Thank you for helping me with this - and quick replies. amazing!

 

[Samuel Tai]

In your case \040 was correct. I've always avoided spaces in any share paths because they lead to headaches like this.