Troubleshooting Failed to Import Pools after Upgrade

TrueNAS General
1

I have been here before! After upgrading from 25.04.2.6 to 25.10.2.1 I worked through the resolution of deleting 25.10.2.1 boot environment, re-applying the upgrade and I thought that worked. However when I decided to upgrade to 25.10.2.1-1 I found that I was back on 25.04.2.6. Evidently I had not not set the active boot pool (environment?) correctly and had rebooted back to 25.04. Just to be safe, I removed 25.10.2, re-applied the 25.10.2 update, rebooted OK, made sure the active boot pool was 25.10.2.

I then applied the 25.10.2.1 and that failed with the error

Begin: Importing ZFS root pool ‘boot-pool’ … Begin: importing pool ‘boot-pool’ using defaults Failure:1”
Command: /sbin/zpool import -N -f ‘boot-pool’
Message: cannot import ‘boot-pool’: no such pool available Error: 1
Failed to import pool ‘boot-pool’|
Manually import the pool and exit.

Now I am unable to boot to 25.10.2 (no boot-pool found) and am back to 25.04.

In trying to go through the documentation, none of the commands I am reading of are working for me.

From the CLI doing a sudo zpool import I get ‘no pools available to import’ once I rebooted back to 25.04.2.6.

From the dashboard when I got o Storage → Import Pool → nothing is listed in the drop-down

I deleted all my backup boot environment (20), just keeping 25.10.2.1 and 25.04.2.6; performed a scrub on the boot pool. Still unable to boot to 25.10.2.1 from 25.04.2.6

Boot Pool Condition: Online
Size 220 GiB
Used 6.1 GiB

Boot Pool Status:
Boot-pool nvme0n1p3 no errors

I am obviously missing something. When I use the boot cli how do I refer to the boot-pool to select it for a manual update? Is it the boot environment name?

Of course, thanks in advance! And I appreciate your patience. I am actually usually pretty good about figuring this stuff out. Just tired of going in circles ;-).

2

Go into the BIOS and check to see how many entries are in boot list. You may have to prune a few from UEFI. That is a guess

3

Thanks @SmallBarky . It’s been years since I had to mess around in the bios. I only see 1 entry, and that is for the boot drive; unless I am missing something. Looks clean to me.

boot-1
boot-1640×480 103 KB

boot-2
boot-2640×480 115 KB

4

Not sure why you get that message. BUT, you never manually import the “boot-pool”, as that contains the OS.

This indicates that the error was “stupid”. You have imported the boot-pool.

If everything works, you can stop messing around with updates and we can concentrate on why the error occurs.

5

Hi @Arwen . Regardless of whether the error was ‘stupid’, fortunately I have been able to roll back to 25.04.2.6. Sooner or later I would like to upgrade to the current Truenas version. I was certainly confused when the upgrade instructed me to manually import the pool and exit and what I found searching seemed to lead me down a rabbit hole. It’s a pretty clean install.

image
image1099×295 15.9 KB

6

Are you saying any attempt to go beyond your 25.04.2.6, ends up with a failed boot?
With that error message?