Hi everyone! 👋

TOS 7.0.1341 (x86) is now available via OTA for users running TOS 7.0.0746 or later.

What’s Improved

• More reliable app updates: Fixes update issues with app versions containing hyphens.
• Clearer app information: App names and “NEW” labels display correctly in the App Center.
• Better access security: Prevents unauthorized access to restricted features.
• More complete file cleanup: Hidden files are now included when selecting and deleting all files with Ctrl+A.
• More reliable system operations: Improves path validation to help prevent invalid requests.

📌 Release notes: https://forum.terra-master.com/en/viewtopic.php?t=10678

So I found the forum post detailing how to go from 5 to 6.

https://forum.terra-master.com/en/viewtopic.php?t=6809

I plan to backup everything right before doing it but I would love not having to use it because I have a lot of configuration for dockers containers.

Only thing I worry is this line :

TOS 6.0.530 features a brand-new root file system, achieving full compatibility with the Ubuntu 22.04 root file system. However, please note that all your original system configurations will be cleared after the update. If you need to retain your original configurations, do not proceed with this update!

What does that actually mean ? Does that mean I will actually have to start over or does that mean they will have reverted my ssh port to default and small settings like that ?

Hi everyone! 👋

We've released a major update to TerraSync, introducing an all-in-one file-sharing feature and on-demand sync for the Mac version of TNAS PC. This update makes it easier for home users, content creators, and business teams to share files while reducing the amount of local storage occupied by large file libraries on Mac computers.

📂All-in-One File Sharing for Simplified Collaboration

TerraSync's new file-sharing feature allows users to share files directly from My Files or Team Folders, reducing the need for repeated downloads and file transfers.

Users can share files directly with specific users or groups, assigning permissions such as preview, view, or manage as needed. They can also grant access through two types of links: internal sharing links accessible only over the local network, and external sharing links created through TNAS.online. External sharing also supports configurable access permissions, passwords, and expiration dates, making file delivery and cross-team collaboration more secure and flexible.

Additionally, TerraSync supports integration with OnlineOffice, enabling users to collaboratively edit popular Office file formats online and track or restore file changes through version history. This feature requires installing the corresponding application from the NAS App Center.

💻On-Demand Sync for Mac Frees Up Local Storage

With limited SSD capacity and growing collections of photos, videos, and project files, Mac users often struggle to keep large file libraries stored locally. The new on-demand sync feature removes the need to download an entire file library to a computer.

Once enabled, users can browse remote file directories locally and download files only when needed. Cached files can be cleared manually after use, and the system can also automatically reclaim cached storage when local storage space is running low. The feature works with either two-way sync or one-way download mode, helping users maintain convenient file access while managing local storage more efficiently.

🔄Sync, Backup, and Version Management in One Solution

TerraSync supports file synchronization across Windows, Mac, and Linux, with two-way sync, one-way upload, and one-way download modes, as well as automatic, manual, and scheduled backups. File version management supports up to 32 versions, with customizable cleanup rules.

For data security, TerraSync continues to provide SSL-encrypted data transmission, personal and team folder permissions, and activity logs to help users better manage and protect their data.

By bringing together file synchronization, backup, sharing, and version management, TerraSync continues to expand the file management capabilities of TerraMaster NAS, delivering a more flexible cross-device collaboration experience for individuals, creators, and business teams.

More details: https://www.terra-master.com/pages/terrasync

If you've tried the new features, we'd love to hear your feedback!

I am not really asking for help, but it was the flair that fit better.

My wife has been having one issue after another with her laptop, so I gave her my spare, so I downloaded the TNAS for PC for Linux, same distro and everything as before, but it was a newer version of the app. When I tried to connect to my F8 SSD Plus to restore the sync from her older computer, it told me "Wrong version, update", but the app was up to date. I logged into TOS and saw a new version available (I had already upgraded to TOS7). I updated, tried again, and it gave me the same issue, even when both server and client were up to date.

I rigged into my own computer, and found the installer from August, so I installed the older client version, and it works, so, for now I found a fix, but I am worried to update and break stuff again.

Anyone has had the same issue?

I got F4-425, installed TOS 7. I've made pihole folders through ssh connection, and they don't appear in File Manager, but I can access them manually through typing Volume1/pihole. After checking the permissions in properties of pihole folder a window appears saying "You need permission to perform this action". Can I do something to make these folder appear in the File Manager + change permissions of that folder?

Hi, I used TNAS Mobile quite a lot on my home network to see where files where moving after using my *arr stack but last night I got a message saying my TNAS on TOS5 was using an older version not compatible ?

I bought this machine 1 year 1/2 ago, I don't want to risk having to setup everything again because the upgrade to 6 or 7 shits the bed.

With so many new nas models coming out from TerraMaster and others, are there certain specs you want on new models you are looking for? My ideal next nas would be a TerraMaster:

• 6-8 Bay HDD unit
• 3-6 M.2 SSD slots - ALL running at PCIe 4x4 minimum (PCIe Gen 5 would be even better)
• Dual 10GbE Nics
• One Thunderbolt 5 Port
• One Thunderbolt 4 Port
• OCulink 5x4 Port
• Transcoding capable CPU (usually prefer Intel w/ integrated graphics but open to AMD)
• DDR5 ECC non-soldered RAM (capable to be expanded to 96GB)
• TOS 7 and TRAID
• PCIe Expansion slot (PCIe 4x16 or higher would be ideal)
• Exterior Shell color options (Silver, White, Gray of Black)

This would be a dream nas for me. How about you guys, what would you want if given a choice?

Hey everyone, looking for some advice or insight on an ongoing issue with my setup.

My hardware setup is a TerraMaster D4-320 connected via USB-C to a Beelink S12 Mini PC running Unraid. Inside the enclosure, I have an 18 TB Seagate Exos as Disk 1 and a 20 TB Exos as Parity.

Every few months, the setup drops off the bus, and it has gotten extremely frustrating. The USB-C port on the unit is absurdly sensitive—literally any slight touch or bump to the USB-C cable causes the drives to immediately unmount.

I recently replaced the USB-C cable, which seems to have helped hold off the random disconnects, but the damage from those previous mid-operation drops is still plaguing the system.

While the USB connection is currently steady, Disk 1 remains stuck as "Unmountable: wrong or no file system" in Unraid. Because of the abrupt disconnects, the XFS filesystem log on Disk 1 got corrupted. I have tried running xfs_repair -v -L /dev/md1p1 multiple times to clear the dirty log, but it simply does not work and Unraid still refuses to mount it cleanly via the WebGUI.

Has anyone running a D4-320 via USB-C run into this level of port sensitivity or found a way to recover a drive stuck in "Unmountable" status after a USB drop when xfs_repair fails? Is there a physical strain-relief trick for these ports, or am I better off moving away from USB-C enclosure bridges entirely for an Unraid array?

Thanks for any help!

Got a used one (that should have been the first red flag) and got two new drives to start up (I'll move the other 4 from my current NAS once this one was setup). However, every time I boot it, it goes to the initialization screen. I initialize, get into the TOS 6, and if I reboot after an auto or manual upgrade to TOS 7, initialization screen. If I just reboot without doing anything, initialization screen.

The first time I booted it, it created the storage pool with the two drives, that took about 30 minutes I'd guess. Now whenever it initializes, the storage pool exists still. It's not rebuilding that. And these are brand new, never used drives.

So I checked the BIOS, the "TOS Boot First" is disabled. The "Boot Option #1" is "UEFI: Generic Flash Disk 8.07, Partition 1 (Generic Flash Disk 8.07)" and the other choices are the two drives or disabled. Not sure that matters.

I would upgrade to TOS 7 during the initialization, but it needs a .ins file, and the download is a .bz2 file. So that's not going forward.

And no, there is no NVME installed right now, just the two NAS drives.

Does anyone have any advice or thoughts on this? I don't want to just start changing things around. I don't really want to use TrueNAS or Unraid yet. I just want to get it up and running for now with TOS 7.

Thanks in advance.

Hi everyone! 👋

New updates are available for TerraSync and TNAS PC.

TerraSync 2.1.560 & TerraSync Client 2.1.560 are now available in the App Center.

What’s new?
• On-demand sync for Mac: Sync files when needed, helping save local storage space.
• Clearer error messages and better logs: Make issues easier to identify.
• Improved sharing security: Share files more securely.
• Fixed a memory leak and other known issues.

TNAS PC 5.2.560 is now available on the official website and in the App Center.

Updates include:
• Clearer error messages for sync tasks.
• Fixed an issue where SSL certificates might not take effect in some scenarios.
• Other known bug fixes.

📌 Details: https://forum.terra-master.com/en/viewtopic.php?t=10687

Let us know what you think!

I try to download it from the appcenter and it always just fails about halfway through. Anyone else experiencing this issue and if so what's the next step?

Hi everyone,

VMs 1.0.060 is now available in the TOS 7 App Center. You can update directly through the App Center.

What's New?

• More reliable image imports: Fixed storage selection issues when importing images with insufficient available space.
• Clearer PCI device information: Fixed missing names for some PCI devices.
• More reliable VM imports: Fixed data retrieval failures during virtual machine imports.
• Additional fixes: Improved overall stability with several other bug fixes.

Recent versions of VMs also include CLI support, allowing you to manage the app through command-line tools and AI agents.

Important: VMs and VirtualBox cannot run at the same time. If VirtualBox is installed on your system, VMs cannot be enabled.

Have you tried VMs on your TerraMaster NAS? Share your experience or feedback in the comments!

Thank you to everyone who joined our “Show Us Your NAS / Home Lab & Win a F2-425” giveaway! We loved seeing your setups and creative ideas.

🏆 Congratulations to our winners!

🥇 u/ ThatJK@thatjkgamer
🥇 u/Soggy_Firefighter_22

📩 Please DM us by October 21, 2026 to claim your prize. If we don't hear from you by then, an alternate winner may be selected.

Didn't win this time? Stay tuned for more TerraMaster events and giveaways!

Im operating on a F4-424 on 6.0.770 and I'm wondering if I should go to 7.

My biggest issue so far has been a resync issue that happens when I close TNAS, even with normal shutdown (Button and web even when nothing's running). Don't know if it's fixed or resolved, but in any case I'd like to upgrade. My questions

-Whar are the known bugs and annoyances so far?

-Do I have to go 6.0.770->6.0.794 first and then manually update to 7, or can I go now

-will a resync happen with every upgrade? Cause I'm on a three disk Traid and every resync days 3-4 days

-Besides filesharing I haven't set anything much in terms of apps and services, but should I expect many things not working and having to reset stuff?

Two TOS 7 updates to share with our community!

TOS 7.0.1298 | x86 & ARM | Online Rollout Complete

Users running TOS 7.0.0746 or later can check for updates.

TOS 7.0.1341 | x86 | Available for Manual Installation

This update brings several practical improvements:

• More reliable app updates: Fixes an issue that could prevent apps from updating when their version numbers contained a hyphen.
• Correct app name display: Fixes incorrect app names in some App Center messages.
• Improved input validation: Fixes insufficient validation of path parameters in certain system interfaces.
• Stronger access controls: Fixes permission checks that could allow non-admin users to access restricted functions.
• More complete file deletion: When hidden files are set to be displayed, selecting all files with Ctrl+A and deleting them now also removes hidden files.
• Improved App Center layout: Fixes an issue where the “NEW” label on some newly released apps could extend beyond its display area.

📥 TOS 7.0.1341 release notes and download:
https://forum.terra-master.com/en/viewtopic.php?t=10678

Thanks for being part of the TerraMaster community. We welcome your feedback!

I'm trying to add my media collection from my F4-424 Pro running TOS7 to Kodi 22 RC 1 on my Nvidia Shield Pro 2019.

I can see the NAS and I can see the folders but I can't see any of the media files. Both SMB and NFS are enabled on the NAS.

In Kodi NFS doesn't work I get a spinning wheel then nothing. The SMB option shows TNAS when I click on it the folder named "public" shows up when I open that it's shows my media categories for example Movies, TV shows etc. When I browse into the Movies folder I can see all of the movie folders named by movie title, but when I browse into the named movie folder the are no files showing?

The same media collection runs fine on Plex.

Any ideas?

A few months ago, I picked up an F4-425 Pro and F6-425 Pro.

They've been working well so far, but I've run into an odd problem.

When I move large quantities of files (around 100+GB) off either NAS, it locks-up mid process. The lock-up doesn't happen immediately. Just some time mid-process of the file transfer.

This happens with both model NASs.

The fans are still running but the NAS has dropped off the network and it does not respond to pings.

I have to hold down the power button to force a shut down, wait 20 seconds, then boot them again.

When they come back up, Storage Manager does not indicate any problems. No issues were logged. No heat warnings.

I used to have HyperCache (read-only) enabled on the F4-425 Pro. I tried disabling it to see if it affected the issue. It did not.

I don't know for sure, but I feel like they weren't always doing this. It feels like it started with a recent firmware update.

When I setup the F6 NAS, I'd already had the F4 NAS a few weeks. I moved a lot of files from the F4 to the F6. I didn't have an issue then.

I've been updating the firmware on both, almost every week, as updates are released, but the issue persists.

I can move about 50GB of files at a time without trouble. If I try to move 100GB (or more), the NAS will lock-up mid process. I don't know if it's an issue with file count or total transfer size.

I have not run into any issues uploading files to either NAS. Multi TB uploads have been fine.

I'm just using File Explorer in Windows 11 to make the transfers.

I don't use any apps or services other than file sharing.

Is this a known issue? How do I get TerraMaster to investigate?

I’m trying to diagnose an intermittent disconnect/reconnect issue with a 14TB Seagate HDD in a TerraMaster D4-320 USB DAS.

The drive is a Seagate ST14000NM0121, originally shucked from a Seagate Expansion Desktop 14TB STKP14000400. It’s being used in a TerraMaster D4-320 connected directly to a Mac.

The problem is that the 14TB drive will occasionally disappear from macOS and then remount automatically a short time later.

SMART/DriveDx looks very clean:

• SMART health 100%
• 0 reallocated sectors
• 0 pending sectors
• 0 offline uncorrectable sectors
• 0 reported uncorrectable errors
• 0 UDMA CRC errors
• no SMART self-test failures
• no obvious media errors

At first I thought this might be a bad bay or bridge inside the D4-320, so I started logging macOS kernel and Disk Arbitration events.

On one failure, the 14TB was attached through a TerraMaster USB/UAS endpoint identified as:

TDAS@01220000

The logs showed a USB request timing out after 5 seconds with 0 bytes transferred, followed by the TDAS device re-enumerating and the disk appearing again. In other words, this did not look like macOS voluntarily unmounting the disk — the USB mass-storage endpoint itself stopped responding and disappeared temporarily.

To test whether the problem was the bay or the drive, I physically swapped the 14TB and 18TB drives between two bays.

I then copied roughly 307GB from an external SSD to both the 14TB and 18TB simultaneously. Both transfers completed successfully.

Shortly afterwards, the 14TB disconnected again.

This time the failure was on a different TerraMaster endpoint:

TDAS@01240000

The logs showed the TDAS device terminating, /dev/disk5 disappearing, and macOS explicitly identifying the lost volume as my 14TB volume. The drive later re-enumerated, macOS recreated the disk device, replayed the HFS journal, and remounted the volume.

So the important part is:

Before swap:
14TB → TDAS@01220000 → disconnect

After swap:
14TB → TDAS@01240000 → disconnect

The 18TB drive moved into the 14TB’s old bay and has not shown the same behaviour so far.

That makes a single bad D4-320 bay much less likely, because the failure appears to follow the physical 14TB drive.

What I’m unsure about is whether this points to:

• an intermittent fault in the 14TB drive’s SATA/interface electronics despite clean SMART,
• a compatibility issue between this specific Seagate model and the D4-320’s USB/UAS bridge,
• or some firmware/power-management quirk with this drive model.

The drive is a shucked ST14000NM0121, which I believe is one of the enterprise/Exos/Mach.2-style models people commonly find inside some 14TB Seagate Expansion externals.

Has anyone seen similar behaviour with this model in a USB DAS, NAS, Unraid, TrueNAS, or server setup?

In particular, has anyone seen a drive remain completely SMART-clean while periodically causing the USB/UAS endpoint to disappear, time out, and re-enumerate?

For now I’m backing everything off the 14TB onto another drive before doing more testing.

If useful, I can also post the relevant macOS kernel log excerpts.

So I only use my nas for my plex server. It's fairly new.

Started with a 4tb drive and have a 10tb hdd arriving Monday.

I would like to keep increasing storage as pricing allows.

Should I upgrade the nas to a 4bay or just add a das with hardware raid?

What would you all do if placed in my crocs.

Hi everyone,  

TOS 7.0.1298 is now available on the TerraMaster forum for both x86 and ARM NAS devices. This release addresses a range of issues to improve app management, file operations, system settings, and everyday usability. 

What’s improved in this release?

x86 & ARM

• App access and login: Fixed issues with opening some newly installed apps, login field focus, time synchronization controls, and avatar uploads. 
• Interface and system behavior: Fixed blank audio tooltips and other known issues. 

ARM-specific fixes

• File management: Fixed folder transfer and comparison issues, folder sorting, and missing error messages when deleting a home directory with Vault enabled. 
• Accounts and permissions: Addressed LDAP user SMB login failures and issues with application and shared folder permissions. 
• System reliability: Fixed excessive Message Center memory usage, CPU temperature alert compatibility on certain models, and overly frequent network connectivity checks. 
• More fixes: Resolved issues with Beta system updates, VPN theme colors, unexpected dialog messages, and other known bugs. 

Get the update:

• x86 release notes and download
• ARM release notes and download

Manual update packages are available now. Online rollout is scheduled to begin next Tuesday.

Have you updated? Share your experience in the comments!

I have 1 10tb and 1 8tb. Another 2 8tb are coming.

I am undecided, I if remaining with traid or I switch to traid+.

I'm already using 8tb, so, with traid+ I will have only 8tb free from the 2 new disks, 0 free slot, and I will need to change at least 3 disk to increase capacity.

I just don't know how to estimate the risk of a double failure.

I backup every morning on external drives (and on cloud for important data); And I only brought disks with a URE of 1 over 10^15.

[ Removed by Reddit on account of violating the content policy. ]