write-access issue

I just set-up OMV 5 as follows:

My NAS -- 2 x 2TB drives in external USB 3 enclosures plugged into my Raspberry Pi 4B 2Gb system running Raspberry 32-bit OS.

Installed OVM 5

-Created 2 file systems using the 2 x 2TB drives. Filesystems are formatted in ext4. The I mounted the file systems.

- Added 2 shared folders using the file systems above

- Installed UnionFilesystems plug-in

- Added share in UnionFilesystems using the 2 shared folders as the branches

- Added a new shared folder using the share created in UnionFilesystems

- Started service SMB/CIFS

- Added a new share in SMB/CIFS using the file share created with UnionFilesystems. Set public to "guests allowed".

Mapped a network drive in my Windows 10 system using the NAS created above.

I can't write to the root directory.

What did I do wrong?

OK. I've deleted ALL the shared folders. I then used UnionFilesystems to branch together to 2 Disk mounts/file systems.

I then added it as a shared folder, with read/write access for everyone, since I can't add it into SMB/CIFS unless it's already a shared folder.

I then added the shared folder as a share in SMB/CIFS with Public set to Only Guests.

I'm getting the same error when I attempt to create a folder on the network drive.

It appears there is something on the Linux side that is preventing access, but I can't figure it out.

I also tried adding this on the Pi

sudo chown pi:pi /dev/sda1

sudo chmod 777 /dev/sda1

usdo chown pi:pi /dev/sdb1

sudo chmod 777 /dev/sdb1

It didn't help either.

FIXED!!!

Using a desktop version of Raspberry OS, I was able to see a little more. Somehow the drives became owned by root and the update field was set to owner-only. I opened a command window and gave the drives to pi using chown, set all permissions to everyone in the desktop. Rebooted and it worked. I don't know how/who/why it became owned by root, but it's fixed.

Other strange thing was a folder called 'Lost+Found' was created. I had to sudo su and rmdir it in order to set the permissions to everyone.

Life is good in the NOOB Linux world again.