Switch from TrueNAS with XFS-z1 encrypted to OMV

Frischling · 15. Oktober 2021

Hello,

is it possible to switch from TrueNAS to OMV with an encrypted pool?

I have concerns about the encryption. First I had installed OMV (a few weeks ago), but I had not found a way to encrypt the pool, only each disk individually.

With TrueNAS you can encrypt the pool and after a restart you can log in via Firefox and unlock the pool with the password. Does this also work with OMV?

When I installed OMV a few weeks ago, I had the problem that hard drives after a reboot simply disappeared and no longer appeared. The error, I think in retrospect, was probably that I had the hard drives one over the other "stacked" and so no air between the hard drives could. That got really hot.

After that, I installed TrueNAS and kept 1 tray away from each hard drive and they barely got warm.

They are 7 WD Red hard drives with 4TB each in an xfs-z1 pool, so 1 hard drive as a backup.

Thanks for the help

raulfg3 · 15. Oktober 2021

probably not work, ZFS need to be same or great that ZFS used on BSD used by TrueNAS.

You need to know what version are used on both O.S. to be sure that can work.

https://www.reddit.com/r/zfs/c…ch_version_of_zfs_i_have/

Please post your steps to help other user to migrate if finally works for you.

Frischling · 15. Oktober 2021

Ok, then i use TrueNAS.

Thanks

jodumont · 15. Oktober 2021

you could move from TrueNAS to TrueNAS SCALE (which is based on Debian)

then use my guide to move your encrypted zfs from TrueNAS SCALE to OMV

RE: How to auto load-key and mount natively encrypted ZFS Pool (no luks)

The issue to pass from TrueNAS directly to OMV is TrueNAS (BSD) use GELI to encrypt the partition

when you will install TrueNAS SCALE it will offer you to convert them into openZFS which remove the GELI part.

ryecoaaron · 15. Oktober 2021

Zitat von raulfg3

probably not work, ZFS need to be same or great that ZFS used on BSD used by TrueNAS.

I don't think that is true. TrueNAS 12u4 (release a week ago) finally supported zfs 2.0. Debian has been zfs 2.0 for quite a while.

jodumont · 16. Oktober 2021

Sorry but between probably (speculation) and reality; I just did it as I explain earlier.

From FreeNAS to FreeNAS SCALE then from FreeNAS SCALE to OMV

I had and have 2 encrypted zpool in mirror: one 2x SATA and one 2x SSD

Obviously I did backups before.

Another way is

1. to remove GELI: https://www.truenas.com/commun…e-keeping-the-data.16467/

2. then move your ZFS pool under OMV

3. and, if you want, to add encryption on your pool, you add it.

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