Can't set ACL properly - different UI between two datasets - why?

TrueNAS General
1

I’ve just installed TN and I’m confused by the filesystem ACL setting page behaving differently on my two datasets. I’m pretty sure I created them the same, and the dataset and child dataset settings look the same.

In one, “edit permissions” takes me straight to the ACL where I can freely add and remove items from the ACL. In the other, I first get a unix permissions page, then when I click “Set ACL”, I’m prompted to select a preset or custom ACL and when I edit after that, I’m always left with three items (not always the same three, just the last three on the list!) that I can’t remove.

What’s causing the second dataset to behave differently? Have I done something differently without realising it?

<I’d love to include some screenshots here, but I’m being told that I can’t embed media items in a post!>

It looks as if they’re different types of ACL, but I can’t see any difference between the datasets that would explain why each has a different ACL format.

Can anyone point me to the solution, please?

2

I’ve just noticed one other difference - the first dataset is not case-sensitive and I can’t change that; the second is case-sensitive and I also can’t change that… What?!

3

There’s two types you can use for permissions, posix and nfsv4. Check which types your datasets use

4

Some properties are immutable. This is covered in existing documentation.

5

Thanks. Both pools show POSIX ACL type. The dataset on one has a NFSv4 ACL, which is what I need. The other pool’s dataset has its ACL set type to ‘inherit’. If I try to change that to NFSv4, I get this error:

Error Name: EINVALError Code: 22Reason: [EINVAL] pool_dataset_update.aclmode: DISCARD aclmode may not be set for NFSv4 acl type

Error Class: ValidationErrorsExtra: [[“pool_dataset_update.aclmode”,“DISCARD aclmode may not be set for NFSv4 acl type”,22]

I can’t see discard mentioned anywhere. What is that?

6

Okay, but how did they come to be different to begin with? I don’t recall being asked when I created them.

7

Ah, got it. AI found the answer… it’s not discard that’s referenced, the solution is to select NFSv4 and at the same time, change ACL mode from ‘inherit’ to ‘passthrough’. Now I have an ACL I can work with :slight_smile: Thanks Lars!

8

We allow selecting the purpose of the dataset when you create it. The dataset settings get changed based on what you choose. This also is documented.

10

Can I see somehow now they’re created, what purpose I selected for each? I don’t recall making the two different, but if they were (generic vs SMB possibly) then I need to know which one to choose in future - although I presume I can also change it if I go into the advanced settings when creating the DS(?)