Hi, this is my first post.
Unfortunately my truenas boot disk died and I didn’t save the configuration file.
Datasets are not encrypted. but I’m not able to import the pools…
Could anyone tell me where I’m doing wrong?
It’s tough to tell what’s up here, but you could try going to the command line and running pool import. That should give some output that tells you a little bit about your options. You may have multiple pools that could be imported and it may complain about a pool being used by another system, but run that and see if it gives you some context clues.
2 Likes
Many thanks for the reply!
As you saw, I have two pools ‘Poeira’ and ‘Tera’, with ‘Tera’ being the one that contains my most important files.
I send these commands:
zpool import
zpool import Tera
zpool import Poeira
And these were the outputs:
root@truenas [~]# zpool import
pool: Poeira
id: 15880765864372537070
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data. see: #####link I took due to forum rules because I’m new####
config:
Poeira
UNAVAIL
insufficient replicas
raidz1-0
UNAVAIL
ONLINE
insufficient replicas
d14b7e40-1f30-48fa-aa6a-979607c297a5
UNAVAIL
db0cb1f4-ceed-4d0a-99d5-4145966f3abf a1a9dca7-c9cd-4cf4-9a25-559e739e6237
UNAVAIL
pool: Poeira
id: 14365867766288150329
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: #####link I took due to forum rules because I’m new####
config:
Poeira
940b02de-4544-4650-98bf-de78792bfd54 91838095-1822-4536-9725-071444e82632
UNAVAIL
unsupported feature(s)
ONLINE
ONLINE
pool: Tera
id: 8564833588264103005
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: #####link I took due to forum rules because I’m new#####
config:
Tera
raidz1-0
UNAVAIL unsupported feature(s)
ONLINE
ONLINE
588c64ae-ca41-4440-8697-1c6264106801 628c1e56-e9aa-46b3-8961-598ba999a759
ONLINE
fa44634d-8275-40f0-80f6-a3d758d82048 root@truenas # zpool import Tera
ONLINE
cannot Import Tera’s pool was previously in use from another system. Last accessed by truenas (hostid=2f7db87b) at Fri Apr 12 12:31:47 2024 The pool can be imported, use 'zpool import -f to import the pool.
root@truenas [~]# zpool import Poeira cannot import 'Poeira’s more than one matching pool
Import by numeric ID instead
root@truenas [~]#
I’m very new to truenas, any help would be greatly appreciated
Did you try using the -f option as suggested? Additionally did your TrueNAS version change?
I tried…
now it is saying that there is this feature that is not supported. ‘com.klarasystems:vdev_zaps_v2’ . But I don’t know if I activated something not supported, at most I created my own datasets for the apps. But I don’t know if my reasoning makes sense… I’m a bit lost because it contains family photos.
root@truenas [~]# zpool import -f
pool: Poeira
id: 15880765864372537070
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-ΕΥ
config:
Poeira
raidz1-0
d14b7e40-1f30-48fa-aa6a-979607c29785
ONLINE
insufficient replicas
UNAVAIL
UNAVAIL
db0cb1f4-ceed-4d0a-99d5-4145966f3abf a1a9dca7-c9cd-4cf4-9a25-559e739e6237
UNAVAIL
insufficient replicas
pool: Poeira
id: 14365867766288150329
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: Message ID: ZFS-8000-EY — OpenZFS documentation
config:
Poeira
940b02de-4544-4b50-98bf-de78792bfd54 91838095-1822-4536-9725-071444882632
UNAVAIL
ONLINE
unsupported feature(s)
UNAVAIL
ONLINE
pool: Tera
id: 8564833588264103005
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data. see: #####link I took due to forum rules because I’m new#####
config:
Tera
UNAVAIL unsupported feature(s)
ONLINE
raidz1-0
588c64ae-ca41-4440-8697-1c62b4106801 628c1e56-e9aa-46b3-6961-598ba999a759
ONLINE
fa44634d-8275-4010-80f6-a3d758d82048
ONLINE ONLINE
root@truenas (")# zpool import -f Tera This pool uses the following feature(s) not supported by this system:
com.klarasystems:vdev zaps_v2 cannot import ‘Tera’: unsupported version or feature root@truenas [~]#
I can’t say exactly about the version because I really don’t remember… but I tried with an older version that I had on ISO. I’m thinking about downloading Core as a trial
I updated to Dragonfish and was able to import the pool through the GUI.
Thank you very much to all of you who responded to the post!!! 
Would it be risky for me to continue using the Dragonfish version, or would it be safer to stay with the stable version?
If the best option is for me to go back to stable, would I just download the configuration file, install the stable version and restore the configuration file?
Do you not have backups ?
Should have another backup, just in case Truenas server fails
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Backups are really, really important
As far as downgrading goes, you could always downgrade to stable and undo the change if it does not work.