Connect with Pi

Running CORE on a refurb’d Dell mini for months now, it’s just a home fileserver to pass files between machines. Works great with Win11 laptop, Win10 desktop, iPad, iPhone and M2 Mac.
I have never managed to connect from my Rasoberry Pi 4. Same error using the RaspOS File Manager or KDE Dolphin manager.

Go Network, click on Truenas it asks for
USERNAME: (the only one)
PASSWORD: (the one that works on every other OS)

It just pops back a password error message.

I have been trying to find a solution for months. The KDE Plasma desktop is not a Mickey Mouse OS and should connect as well as any other.
To make things perfectly cleat: Truenas is on it’s own machine, Raspberry Pi is the cliebt trying to access it and I only want to access the files when I need to.

Any suggestions as to a solution?

whoa, whoa, whoa! Hold on there. I’m about to change your world. …We don’t “connect” on *nix. We “bring the stuff to us”. The Mac, PI and TrueNAS are in a class where we leave the windows stuff in the dust.

On the Mac and the PI you’d ask TrueNAS for the files and they would be handed to you automatically. This is called mounting. Mac and PI can both “read NFS” and the TrueNAS server “talks NFS” (NFS stands for Network File System). Check out this article.

Now, you’re running KDE on a PI?! Seriously? I thought PIs were cheap little things.

Windows Mac and IOS work fine, Linux gives a password error.through the File Manager.
Don’t really want to mount it permanently just use it now and then. When I tried to mount it in fstab, it starts to load the folder and then dies partway w no error given.
You’re right that Windoze is a steaming pile of crap but it managed to connect quickly and properly thru the GUI like it’s supposed to.
And you’re wrong about Pis they’re inexpensive but more than capable. Running KDE Plasma, not as fast as my M2 Mac Mini or my 32GB Ryzen 3599 PC but better than the budget laptops people keep buying.
The Pi is now running Ubuntu 24.04LTS as a webserver and that doesn’t connect to Truenas either. Not that it’s critical, all the work computers are within arm’s reach of a USB stick to transfer files anyway.