Transfer pool to a new installation?

[Octopuss]

I want to do a clean install of TrueNAS 12 rather than keep upgrading over and over like I have been for the several previous versions, but I don't have anywhere to temporarily put the 3TB of data I have on the disks. Is it possible to somehow import the disks as an existing pool after installation?

 

[blanchet]

yes you can

 

[Samuel Tai]

To expand on @blanchet's comment, yes, it is possible to import an existing pool into a clean install. Just remember to export/disconnect the pool cleanly, so the new installation will see it as an available pool. Otherwise, you'll get a complaint about the pool being in use on another system.

 

[Octopuss]

Oh so it's that simple? The system will read certain data from the disks and identify the whole thing as a pool? Wow, that's great.

 

[runevn]

Thanks sounds great.

I'm also looking into importing an existing pool into a fresh installation, I just have one questions: is there any thing I should consider regarding ownership of the files on the different datasets?

On my old system I have different users with own home directories and Apple Timemachine backups. Is it just to recreate the users from my old system and create the shares?

 

[sretalla]

Is it just to recreate the users from my old system and create the shares?

If you create the same users with the same UID/GIDs, it will all be fine.

 

[runevn]

If you create the same users with the same UID/GIDs, it will all be fine.

Thanks a million!