Yeah, I know right. I’ve been out of the loop for a while - last time I checked in it was all talk of core vs scale; but now it seems it’s TrueNAS ‘community edition’? Is that CORE or SCALE or something else? I brief clarification on that would be appreciated.
I’m wanting to update my system from FreeNAS 11.3 RELEASE to the newest stable version of TrueNAS please and would very much appreciate some guidance.
So where am I at currently?
I have FreeNAS running. I have 6 x 3Tb HDD in RAIDZ2 (double parity, if you prefer).
Currently it shows one drive error.
CRITICAL Device: /dev/ada4, 2 Currently unreadable (pending) sectors.
but it is showing the drive as online.
Q!: I’m not sure what this error means so I can only assume that the drive has failed and needs to be replaced?
Interestingly with 18TB total storage and raidZ2 there ought to be 12Tb available to be used. It is currently reporting 2.31 TiB used and 8.18 TiB avail for a total of ~10,5, Is the difference teh fact that a drive is faulty / ‘missing’ from the array?
Q2: Do I NEED to replace this drive etc before updating? I’d rather not, if it’s not necessary as it will take me a while to find a replacement and I kinda want to get on with this (I have a spare day or two).
In FreeNAS GUI I have gone into System/General and clicked the SAVE CONFIG button. I ticked both “Export Password Secret Seed” and “Export Pool Encryption Keys” and clicked save. I now have a file titled “Remus-FreeNAS-11.3-RELEASE-20261008224521.tar” in the downloads directory on my Windows machine.
Q3: Is that all I need to download from FreeNAS 11.3 in order to set up TrueNAS without any loss of my data, pools etc? (I am only worried about my media collection which is what I have there, there are no apps or jails or VMs or anything.
I am currently downloading TrueNAS community edition 25.10.7 (I note it is downloading as TrueNAS-SCALE-25.10.7.iso so I suppose that mostly answers my earlier question about what the community edition actuially is).
So looking at Installing TrueNAS | TrueNAS Documentation Hub it seems pretty simple. Burn the ISO to a USB drive, boot from the USB, install it to the SSD on which FreeNAS currently resides.
Q4: Then, I presume, go into TrueNAS and import the .tar file which was exported from FreeNAS?
I THINK I saw somewhere that TrueNAS doesn’t allow ‘root’ to be used as a username anymore.
Q5: Do I need to somehow change my username in FreeNAS to something else and then export a new config file? (or can that all be sorted out during the TrueNAS install?)


