Problem/Justification (What is the problem you are trying to solve with this feature/improvement or why should it be considered?) Absence of dm_mod prevents mounting LUKS encrypted drives for offline backup Impact (How is this feature going to impact all TrueNAS users? What are the benefits and …

Thank you for your suggestion but iXsystems does not currently have any interest in implementing LUKS in the foreseeable future. In order to release votes and not drag the discussion we have archived this discussion for now. Thank you for understanding.

But ZFS already supports native encryption?

And SCALE does not really support any other file system… I mean you could likely use EXT2/3/4 or potentially FAT / exFAT, but they are not supported.

I know, that TrueNAS is built around ZFS and I really like it, but it would be nice to have more options for encrypted offline backups just because of backward compatibility with legacy systems or just systems without zfs support. Given, that there are all nessesary tools present for LUKS except of …

Except that LUKS without a supported non-ZFS file system, would be less useful. As an example, say iX starts supporting LUKS on SCALE. You start using EXT4 on top of LUKS. At some future date iX removes EXT4, (regardless of why). And since it was never an official supported file system, you have to…

Ah I see, ye, I’d use ext4, but given that iX want’s to target enterprise then in that context it doesn’t make much sense. But it would be nice to have an option at least for setting up offline backups on single disks with encrypted zfs in GUI, so small businesses (my case) could do it. On a tangen…

[image] angoosh: On a tangent, I’m experiencing some issues with ACLs because it looks like TrueNAS is not built for it the way I use it (migrated from legacy fedora machine with a mess of ACLs) Make a thread about it and see if someone here can offer assistance.

[image] angoosh: But it would be nice to have an option at least for setting up offline backups on single disks with encrypted zfs in GUI, so small businesses (my case) could do it. Nothing prevents creating a ZFS encrypted pool on a single drive in the GUI, replicating to it, and then export…

One thing to consider is that ZFS always encrypts per dataset. Even though the encryption root can be the same, a different underlying encryption key is always used. It is randomly generated when creating an encrypted dataset and cannot be changed. The user-facing key just allows ZFS to access that …

+1 for adding LUKS support back, for the following reasons: Every version of TrueNAS SCALE supported it up until the latest version, so there are people using it. The cryptsetup binary is still included in the latest version (but is now apparently useless). It is not unreasonable for a storage ser…

[image] davehensley: Encrypted ZFS leaks all kinds of metadata and therefore won’t solve all use cases where security is important. Yes, it is unfortunate. ZFS was not originally designed with encryption in mind. However, adding LUKS, (or for that mater, re-instating GELI encryption for Cor…

[Not Accepted] Support for LUKS

Feature Requests

Topic		Replies	Views
[Not Accepted] Request to add `dm_mod.so` back into SCALE Feature Requests SCALE	27	685	January 6, 2026
Cryptsetup and dm_mod kernel module load TrueNAS General	42	1120	February 17, 2026
Moving apps/containers to encrypted datasets? Apps and Virtualization SCALE , Apps , VM , Security , Encryption	10	260	June 6, 2026
FANGTOOTH observations / issues TrueNAS General SCALE	50	974	June 21, 2025
Allow Encryption of ix-apps Feature Requests	32	969	June 20, 2026

[Not Accepted] Support for LUKS

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