26-BETA.3 Notable Changes

I know there's a few docker containers you can use to run CUPS on truenas, but as they always end up conflicting with Avahi on the host or with the container's cups-browsed or DNSSD broadcast from inside, resulting in for example the same printer being rendered incorrectly on iOS devices with Airprint, is there a canonical or specific way you're supposed to run it? Is it going to be included in Truenas in the future?

I'd rather not have to deploy a raspberry pi at the same time as my NAS if I don't have to, with how much Truenas can already do. Thanks for the help!

Hello all,

I am looking to upgrade my Truenas Scale machine from what I have now (AMD E-450 cpu, 3x256gb in RAIDZ1).

I am going to the dump and planning on picking up some PCs from the electronics bin.

Any advice as to what I’m looking for is greatly appreciated

As I previously posted (https://www.reddit.com/r/truenas/s/c1m9jXz8X8) I have still had this issue, but the updates of the containers have just been ignored as I can't seem to find a way to update them.

Is there a way to do it via the command line, seeing as the gui doesn't think the app service is running when it clearly is.

Any help would be fantastic!

I have added a GPU to my TrueNAS box and wanted to run ollama, which I can do very nicely for my local needs. However I want to force it to keep the model in memory and to do this I need to change some settings that are not available via the TrueNAS UI. As this is the first time I have used an App on TrueNAS, can anyone give me directions on how to set custom environment variables ?

I had a pretty basic setup with Core and I was trying to install Stash and Whisparr but plugins no longer work so I upgraded to Scale. I'm still getting used to it right now.

I'm not that technically savvy but I managed to install Whisparr via YAML and Stash ok. Now the thing is how do I add files? I'm not sure if I have the right directories setup or if I'm missing something.

This is how my Datasets are setup right now.

KANSAS
- apps
  - stash
  - whisparr
- data
  - downloads
  - media

I need help with these things

• what directory I should choose for Stash
• what to choose as my root folder for Whisparr
• how to add files so they can be accessed/discovered by Stash and Whisparr
  • do I have to set up a SMB? what directory should I set up as the SMBs?
  • how do I add the files? do I drag and drop them using Windows Explorer like I did when I setup Plex on TrueNAS Core?

Google did help especially figuring out how to install Whisparr since its not in Apps on Scale and had no idea what YAML is but I can't figure out how to do the rest and I'm kind of lost for what I do from here.

services:
  whisparr:
    container_name: whisparr
    environment:
      - PUID=3000
      - PGID=3000
      - TZ=America/Los_Angeles
    image: ghcr.io/thespad/whisparr:latest
    ports:
      - '6969:6969'
    restart: unless-stopped
    volumes:
      - /mnt/KANSAS/apps/whisparr/config:/config
      - /mnt/KANSAS/apps/data/downloads:/downloads

I have Whisparr set up as its own user and it has Full Admin but I'm not sure if that's needed? What access should I set it to?

How good idea is to use two Optaine in mirror with a pcie to m.2 for slog

Hey everyone, looking to resolve a permission issue.

I am setting up syncthing, to test my set up I am using my dotfiles folder on my linux computer to see if everything is working.

With ignore permissions unchecked on the client and server, I noticed that once syncthing synced the files, the permissions of the files changed, so if I ran "git status" it would list all of the files in my dotfiles folder, it would say they had changed from 0644 to 0755. Here is the output with an example file:

Before syncthing touches the files:

dotfiles git:master ❯ stat -c '%A %a %U:%G %u:%g %n' alacritty/.config/alacritty/alacritty.toml
-rw-r--r-- 644 personal:personal 1000:1000 alacritty/.config/alacritty/alacritty.toml

After syncthing touches the files (same command):

-rwxrwxr-x 775 personal:personal 1000:1000 alacritty/.config/alacritty/alacritty.toml

After syncthing touches the files using the truenas shell to check the perms:

-rwxr--r-- 744 amy:amy 3000:3001 alacritty/.config/alacritty/alacritty.toml

So depending where I look at the file will change what perms this command tells me the files has, I tried enabling ignore permissions on the client and server side of syncthing, and this stops the 775 permissions being sent back to my original dotfiles from the nas copy, but I feel this only half solves the issue, if I ever needed to get a new folder from my nas, the permissions will be 775 for all the contents inside, and I will need to spend time fixing them

The settings for the storage folder inside truenas scale:

ACL Type*

SMB/NFSv4

ACL Mode*

Passthrough

I tried changing this to restricted but ran into permission denied errors this way, I feel like I am missing something simple, so any advice would be appreciated.

I setup my NAS / media storage just a few days back, and the experience has been amazing so far. I’m using Jellyfin because it has apps for all my devices. Most importantly, it has an app for Apple TV. I had two old laptops sitting unused. I harvested parts from the older one and the newer laptop had better specs: 9th gen i7, 1TB HDD + 500GB SSD, 32GB RAM and a 1650 max q GPU. I installed Debian 13 on it, and configured the 1TB HDD to act as my NAS. I have two additional 1TB HDDs, which I’m planning to add to my setup. My ultimate aim is to use my setup for media consumption and as a cloud backup for my family, so that I can cancel my cloud subscriptions. Please advise on how I can improve my setup and suggest parts, optimization strategies etc. Thank you!

Hello all - apologies if this is a novice question/issue but I am a relatively novice user.

I recently set up CloudSync in my TrueNAS Scale configuration to back up one of my Data Stores to Backblaze. The first back up of data itself seems to have gone fine but after backing up the data cloudsync now shows this "checks: [number] out of [number]" status that is hanging. It's been on this status for a week now and as a result is not completing the sync job.

I've tried canceling and rerunning the sync job but it always results in this hanging "checks:" status. Is anyone familiar with using Cloud Sync to backup to Backblaze and what might be causing this?

Thanks!

I’m running TrueNAS SCALE natively on a Minisforum N5 Air with 64 GB RAM. I don't like TrueNAS Apps approach and instead I would like to run Docker + Arcane with Compose projects pulled from GitHub.

I plan to run Traefik, Immich, Komga, Papra, Grimmory, Qbittorrent, etc.

Which approach would you choose?

• Docker directly on the TrueNAS host? Arcane as an App with access to the Docker socket.
• Debian VM + Docker? - no iGPU hardware acceleration in Immich.
• LXC + Docker? - iGPU hardware acceleration available but the feature is experimental and changes planned for 26 if I understand correctly.
• Are there better options?

I’m especially interested in GPU access for the AMD iGPU/Immich and direct access to ZFS datasets. I would also like to know how well the setup survives TrueNAS upgrades.

I would love to hear what has worked reliably for you.

I have a Mellanox ConnectX-2 on my TrueNAS machine, connected to a mikrotik switch, and it works, mostly, fine.

I have the exactly same nic on my desktop, connected to the exact same switch, using the exact same AOC, which works completely fine.

I decided to try a pair of FS SFP+ optical transceivers on my TrueNAS machine to see if it fixes those issue (the link not coming up after a power failure unless I unplug and replug the SFP+ connector from the NIC, this does not happen on my desktop).

But for some reason it refuses to work properly.

I can ping it, access it through SSH, and list the contents of the network shares (incredibly slowly), but the web interface won't load, it gets stuck on the blinking/fading TrueNAS logo.

I tried the transceivers on my desktop and they worked just fine, no issues at all.

Rebooting the TrueNAS machine does nothing, the issue persists, only using the previous AOC "fixes" the issue.

I had similar issues previously, I don't remember the details, if it was swapping between a DAC and an AOC, it was quite some time ago.

I tested the optical transceiver on the second port of the NIC, configuring a different IP from a different network, added an address from that network to my desktop, and everything worked just fine, was able to saturate the link, I checked the traffic both on the web interface, looking at the stats on the port, and also on the switch, where I connected the second port, to make sure the traffic was going through the correct interface.

I'm on TrueNAS 25.04.2.4, the motherboard is an Intel Z270.

What could be going on here? It clearly has connectivity, but for some reason it's limited, looking at the stats of the port on the switch I can see it successfully negotiated at 10G, at the proper speeds, but connectivity is seriously impaired.

Hi everyone,
I wanted to set up a system with TrueNAS Scale 25.10.6 on older hardware (Intel S1200KP with Intel Xeon E3-xxxx). Installer runs just fine and everything seems right but when I want to boot the system it does not recognize the freshly installed system. Instead it shows “a bootable device has not been detected”.

AI suggested to update the BIOS but Intel does not offer the updates for this board anymore. Additionally I tried various SSDs and different SATA ports but was not able to get any further.

The boot priority is set to the correct drive and I have tried UEFI mode and legacy mode (both with fresh installs reflecting the setup). Interestingly the system is able to boot if I use the boot menu (F10) and select the boot drive. Unfortunately that is nothing I can use during “production” when the system is at my parents house running headless as a backup target.

Now the even more interesting part: When I install Proxmox the system boots (to proxmox, of course) when I set it to boot in UEFI mode (with legacy I get the same results as with TrueNAS), so I think there is an issue with GRUB or the partition. Any ideas what might go wrong here and how to fix this?

Thanks a lot
Max

I’m a total NAS newbie and getting ready to set up my very first NAS system. After some research, TrueNAS has caught my eye thanks to its rich feature set. Coming in with zero real‑world experience, I still have quite a few unknowns, so I’d love to hear from people running it day‑to‑day.

‑ What are your most‑used features? Beyond basic file storage, what apps or services (Plex, backups, VMs, Nextcloud, etc.) do you actually rely on with TrueNAS?

‑ When building or buying hardware, which spec matters most to you? CPU for transcoding, ECC RAM for data integrity, number of drive bays for expansion, or power efficiency?

‑ How long does your NAS hardware typically stay in service? Do you go with higher‑end hardware aiming for 5‑10 years of runtime, or prefer more cost‑conscious setups you plan to upgrade every few years?

For context, I haven’t finalized my storage requirements yet, and I’m still on the fence between a DIY build and off‑the‑shelf pre‑built hardware.

I’m eager to gather real‑world insights to shape my planning. Thanks a lot for sharing!

Wanted to post https://github.com/zzzhouuu/truenas-nvidia-drivers and pass massive thanks for this repo.

Here if anyone needs it

Setup: 2x4TB WD Red Plus mirror on a ZimaBlade, TrueNAS SCALE 25.10.5, ZFS 2.3.4. Pool went offline after a brief version upgrade that I reverted shortly after. zpool import has failed for about two weeks now, in every mode and flag combination.

**Where things stand (with a lot of help from someone on the OpenZFS forum working from exact source references ; full thread here: https://github.com/openzfs/zfs/discussions/18954

• SMART, disk labels, uberblocks, partition tables ; all clean on both disks. No hardware issue.
• zdb -e fully loads the pool's trusted config ; the pool structure and data are demonstrably intact and readable.
• Root cause of the import failure: spa_load_verify (spa.c:2831) unconditionally walks every dataset via dmu_objset_find_dp before allowing import, regardless of flags. One object ; a DSL props ZAP (object 293) ; fails checksum (ECKSUM) during that walk, which aborts the entire import. No combination of -f, -F, -X, -o readonly=on, -N, or spa_load_verify_metadata=0 bypasses this; -F/-X actually make it worse since they re-enable full data verification.
• A full zdb -bcsvL traversal found only 8 checksum errors out of 29.2 million block pointers total, and every one is confined to pool-internal bookkeeping (SPA space map, DSL props) or disposable .system/samba4 and .system/netdata-* service datasets. None of my actual data (Photos, Documents, Archived, etc.) shows any corruption.

Current blocker: Since import can't succeed, the suggested path is zdb -B (backup stream extraction ; reads a dataset directly, bypassing the import verification entirely). But every dataset I try ; encrypted or not, parent or child dataset, various sizes ; fails identically:

dump_backup: dmu_send_obj: Permission denied

Running as root via sudo, confirmed with id. Output file is always 0 bytes, exit code 0. The zfs_dbgmsg buffer (checked via zdb -G) shows nothing related to this error ; the pool-load trace completes normally and logs LOADED, but the permission denial itself isn't logged anywhere I can find.

zdb -O/-r (path-based lookups, a different code path) also fail, but with a different error ; Input/output error ; so this may be a separate issue from the -B failure.

What I'm hoping someone here can help with:

• Has anyone seen dmu_send_obj: Permission denied from zdb -B before? Trying to figure out if this is a known/expected behavior, a TrueNAS SCALE-specific build difference, or something environment-specific I'm missing.
• Any idea what permission check dmu_send_obj performs that would fail even under root, and whether there's a way to satisfy it or get more diagnostic detail out of it?

Not time-pressured; data is important but not critical/urgent, just want to get it off before doing anything destructive to the pool. Happy to provide any further diagnostics.

Also posted in r/zfs; will update both if I get an answer anywhere.

Hey guys,

im having an issue with my nas server.

I only run nzbget, tailscail and jellyfin on it.

If my brother streams something for some reason my lan keeps crashing. I have already tried a bunch of stuff suggested by AI but i dont think the issue is solved. I have disabled tge bonding and bridging function, put a gigaswitch between my server pc and router, dusabled all energy saving options in router and so on. My wlan keeps running btw. Its running on unraid. If anyone has a helpful idea what could cause this id appreciate it alot :)

Hi all, I just got a DIY server somewhat running and am running into some trouble.

Specs:

Intel i7-8700

Asus Prime Z370-A - Using onboard GbE

16GB DDR4-3200

128GB SATA SSD - Boot Drive - Latest version 25 TrueNAS Community Edition

EVGA 750 G2

Basically, I put 2 8TB drives in a mirror, made a dataset consisting of a folder in that vdev, and made an SMB share of that folder. I made a user and gave it modify permissions for that share. On my PC, I used the IP in Explorer to access the share with that new user's credentials.

I can access that directory just fine, can even create folders, text files within them, edit them, and delete them. I can copy individual files onto the share and it mostly works that way. The problem started when I copied a folder with many sub-folders and files within it. A few folders and files copied successfully, but then I got the "Destination folder access denied" error with options to try again, skip, or cancel. Trying again just repeats the cycle, skip will move onto the next file and do the same thing and continue skipping, while almost nothing gets copied.

I noticed that if I have the destination folder (the share) open during this behavior, I can see the currently copying file appear, then it disappears after it fails and moves onto the next file to do the same thing again. I also went into a folder which consisted of 8 files and copied those files to rule out copying a whole folder vs just the files, and out of those 8, only 2 managed to copy once I got through the try again and skip cycles, so it's the same whether I copy a folder or just files. An 8GB folder only copied about 400-something MB once all was said and done.

I've tried using the multi-protocol share as well as the SMB share options, changing the user's permissions from modify to full control. and whatever else seemed obvious to me, but I'm still a noob at this and I'm not sure what is going on.

Thanks.

Hello, well met.

I am testing V26 Beta 2, while still using my 4-bay Synology as my main NAS. I am spoiled to Synology Hybrid Raid, so in a holding pattern until anyraid Z1 becomes available. I went for Truenas when I saw that we had anyraid on V26 beta, but I didn't know it was only stripe or mirror right now.

1. Does anyone have any idea when we might get anyraid Z1? I've had a hard time finding any news less than one year old.
2. I'm kind of stuck on the "Early Adopter" update profile right now. The only other option in the dropdown is "Developer". Will I be able to change my update profile to "General" once V26 is fully released?

Thanks