Missing data pool following a reinstall of truenas and permissions issues

[pphi]

I recently had my boot drive fail (it was a memory stick). I have now upgraded to an SSD and got TrueNAS-12.0-U7 installed.
I have managed to import my old storage pool and have been trying to access all the files on it.
I set up a user account using my old credentials and logged in to the NAS by typing the IP address in to windows explorer and it worked once. Everything was there.
But now when I try again I get permission issues.
I believe the main reason for this is that the data isn't in a data set.
When I look at my pools all I see is this:

The "Test1" data pool is there as I have been following a tutorial to get permissions to work on a brand new pool before I even try to recover the data.
Now the pool indicates that 1.92TiB is used but the data sets don't show that so I suspect however I had it set up before I did something wrong.
I followed the post here https://www.truenas.com/community/threads/missing-dataset.63846/

Code:

  ONLINE  -
root@truenas[~]# zfs list
NAME                                                                 USED  AVAIL     REFER  MOUNTPOINT
Main-Storage-pool                                                   1.92T  3.34T     1.92T  /mnt/Main-Storage-pool
Main-Storage-pool/.system                                           8.05M  3.34T      112K  legacy
Main-Storage-pool/.system/configs-a62da19985ae44c39132517d2464c41d    96K  3.34T       96K  legacy
Main-Storage-pool/.system/cores                                       96K  1024M       96K  legacy
Main-Storage-pool/.system/rrd-a62da19985ae44c39132517d2464c41d      6.41M  3.34T     6.41M  legacy
Main-Storage-pool/.system/samba4                                     892K  3.34T      324K  legacy
Main-Storage-pool/.system/services                                    96K  3.34T       96K  legacy
Main-Storage-pool/.system/syslog-a62da19985ae44c39132517d2464c41d    292K  3.34T      292K  legacy
Main-Storage-pool/.system/webui                                       96K  3.34T       96K  legacy
Main-Storage-pool/Main storage dataset                                88K  3.34T       88K  /mnt/Main-Storage-pool/Main storage dataset
Main-Storage-pool/Test1                                               96K  3.34T       96K  /mnt/Main-Storage-pool/Test1
boot-pool                                                           1.20G   106G       24K  none

And got this from the zfs list command in the shell on the web GUI.
And then this from improvising based on the rest of the thread but I couldn't dig any deeper. it implies to me that the "shared data" folder I'm looking for is still there but I have no idea how to get to it.

Code:

root@truenas[~]# ls -lah /mnt/Main-Storage-pool
total 28
drwxrwx---+ 7 root     pporter     8B Dec 23 14:01 .
drwxr-xr-x  3 root     wheel     128B Dec 23 13:10 ..
-rwxrwx---+ 1 root     wheel       0B Dec 31  2019 .windows
drwxrwx---+ 2 root     wheel       3B Jan 12  2020 Main storage dataset
drwxrwx---+ 2 sevans   sevans      2B Jan 12  2020 phil
-rwxrwx---+ 1 root     wheel       0B Dec 31  2019 .windows
drwxrwx---+ 2 root     wheel       3B Jan 12  2020 Main storage dataset
drwxrwx---+ 2 sevans   sevans      2B Jan 12  2020 phil

Issue 2 (possibly related)
I followed a number of videos about setting up permissions. I set up a new data set "test 1" and tried to give myself permissions for it. I will post screenshots below of my user and share screens and hopefully someone will be able to help with what I have done wrong with permissions here.
My user screen

My group screen

Data set ACL

Continued...

Share options

The outcome

When I navigate to the NAS in windows explorer I see the following:

If I try "mnt"

Which is fair as I haven't set up a share for that.

When I try for "Test 1" I am prompted to enter my credentials which I do. Then I get:

And finally hardware specs:
Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
16Gb RAM
120gb SSD boot OS (new today)
2*6TB HDD

I can't remember what the motherboard is.


If anyone can help me with this I would be super grateful I feel like I have been going round in circles for hours and hours.
It was so frustrating it looked like it was just going to work initially, but now I feel like I might have messed something up when I set this up 2 years ago.

Thanks in advance.

Pphi

 

[pphi]

To update this in case it inspires anyone with ideas. I can now use the shell commands in the web interface to list the missing directories.
Is it possible to now copy these to a new data set that is correctly set up.
I am still having permissions issues and I wonder if this is due to ACL settings set up on the entire pool in the older version of freenas is there anything I can do about this?

 

[pphi]

We have now manage to access the hidden files using

Code:

chown -R "user" mnt

to give ownership of these files to a user. Then we logged in via windows copied the essential files and tomorrow evening I will be rebuilding the NAS from scratch.