Disaster after accidentally running apt-get upgrade

[a575606]

Hi everyone. I have spent a couple weeks setting up my first TrueNAS home server and was finally getting everything working when I had a bit of a disaster. I'm really hoping someone can help, as it's really been a huge amount of work.

Basically, to make a long story short, I was trying to build a docker image and one of the commands in the Docker file included running an apt-get update && apt-get upgrade -y. I was getting an error at that step and so I ran the command manually, not thinking about the fact that I was running the update outside of the scope of the container. It was not until I saw various truenas components being upgraded that I realized the mistake.

I tried rebooting but all is not well with my installation. My network adapters aren't detected (4 x 1Gb in 802.3ad link), nor are my data pools (6 x 4tb z1 with 128 gb ssd cache and 1 x 4tb single drive stripe). I can get to the cli, but with no networking nor access to data, it's not so helpful. It does find my boot pool however, a 128 gb ssd.

My idea is to unplug the data drives and reboot on a usb install disk and reinstall TrueNAS, then reboot with my drives plugged in, hoping they'll be picked up. However, before doing anything I wanted to know if:

a) is there any way to save the config settings, users, etc? and

b) do I have the right idea, or is there another way to rescue things I haven't thought of?

Any help would really be appreciated. Thanks!

 

[sretalla]

a) is there any way to save the config settings, users, etc? and

It's in /data

b) do I have the right idea, or is there another way to rescue things I haven't thought of?

It's an appliance, so you're certainly on the right track, just rebuild and restore config (and as long as you're not too far off-piste with your "custom" config, all will be fine).

 

[a575606]

Hi sretalla, thanks for your help, it's much appreciated.

So, the saga continues... I managed to install truenas on an external drive and was able to import my data pools without incident, so that was a relief. However I wasn't able to import the old boot-pool via the gui or the cli... that's perhaps due to my inexperience with zfs, but it didn't seem easy to access the old /data directory from a different install. I then tried to run an upgrade install on the original boot drive, which failed, but I was able to grab the 'data_preserved' dir from the failed upgrade, which included /data and a couple files in other directories.

The question now is, can I do a clean install and overwrite the files from /data and reboot? Or is there a better way to import the old settings?

And, is there a way to export settings in future so I can back them up, or is backing up the /data directory sufficient?