automount SMB in Tahoe 26 no longer working

I was a little confused, but I think we're mostly talking about the same issue, but different use cases. If I understand you correctly, by startup you really mean rebooting the machine. That is usually not a problem for me. The main issue I have is that I have some shell scripts the rely on the location of the shared folder being stable in the file system and the issue typically happens randomly during usage. It also reconnects randomly for whatever reason.

I will say that while not ideal, I have had great success with NFS and while it's a little basic, the performance is actually quite good. It of course doesn't support Time Machine, but if all you want is share files, it's an option worth considering.

Problem still exists, even with 26.2 final version.

Its very disappointing that each time a new MacOS version gets released, SMB is messed up.

Right, but it relies on you having to click on a link if I understand it correctly? In my case, I find unmounting is much faster since auto mount will remount it immediately. Ideally, I would want my share to be just there. The issue, at least in my case, is that it seems that there is a point where MacOS loses the connection to the share and resets its permissions to be only available to root, basically the default for automount before you cd into it, but in this case, it is stuck in that case and you get a permission denied, even though the share is fine. It's like automount is stuck thinking that the is unavailable until you unmount it and it brings it back to life.

Months of testing and debugging and I've made no progress in figuring out what the issue is. The only reliable way of being able to use my NAS to share files through a stable folder location is with NFS, which is not ideal and obviously means no Time Machine, although I believe AutoMounter might be good enough for Time Machine since it might not need a stable link to the share.

I've filled this as a bug report.

Would suggest others do the same after speaking to an Apple Rep for the education sector yesterday. He insists that these all end up in the inbox of the person responsible for the product (I'll take with a pinch of salt) so if enough people moan about it.......

Feedback - macOS - Apple

I just bought "Automounter". It works like charm! Thank you whoever first mentioned it here!

Apple, are you kidding all of us here? I mean those who use a NAS? I have a $4000+ macbook pro with macOS 26.1 in the front of me and need to spend another 10 bucks to get a basic functionality which is documented as existing on macOS. Seriously?

I’ve been looking for information about this for a long time and I'm incredibly happy that I came across this post, thank you

wombat2k wrote:

I'm surprised by the amount of people who were successful with this.

Don't believe what you read on the internet.

I'm surprised by the amount of people who were successful with this. When I implemented this, it worked, however after a while, typically on a wake up, but also sometimes during usage, the macOS will change the permissions on the directory to be accessible to root only and make it inaccessible. The only way to remedy this is to unmount, and then auto mount remounts it automatically (and successfully).

Even the Automounter app has similar issues, in that it cannot access the original folder, so it creates a new one by appending `-1` to the original folder name.. This works if you are using the Finder to access your share, but not if you are relying on a stable location.

It's as if there is a disconnect somewhere and autmount isn't triggered, so it doesn't change the permissions on the share to make it accessible..

Thank you, that worked for me. Flawlessly. Until Apple fixes the issue.

this worked for me.

in a terminal window:

sudo diskutil unmountDisk force /Volumes/<share-name>

Then you can remount through Finder without having to logout or restart. Still annoying, but less so..