September 6, 20241 yr Hi All, Starting to think about moving from TrueNas (after 10 years) to Unraid due to constant change in direction from TrueNas. So at this point I wonder if just exporting pools and importing them into Unraid will do the trick? zpool status -LP pool: BigDisk state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: scrub repaired 0B in 11:28:02 with 0 errors on Sun Aug 11 11:28:04 2024 config: NAME STATE READ WRITE CKSUM BigDisk ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /dev/sdc2 ONLINE 0 0 0 /dev/sdg2 ONLINE 0 0 0 errors: No known data errors pool: USBBackup state: ONLINE scan: scrub repaired 0B in 16:16:42 with 0 errors on Sun Aug 18 16:16:44 2024 config: NAME STATE READ WRITE CKSUM USBBackup ONLINE 0 0 0 /dev/sda2 ONLINE 0 0 0 errors: No known data errors pool: freenas-boot state: ONLINE scan: scrub repaired 0B in 00:04:10 with 0 errors on Wed Sep 4 03:49:12 2024 config: NAME STATE READ WRITE CKSUM freenas-boot ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /dev/sdf2 ONLINE 0 0 0 /dev/sdd2 ONLINE 0 0 0 errors: No known data errors pool: pool state: ONLINE scan: scrub repaired 0B in 03:15:42 with 0 errors on Sun Aug 18 03:16:41 2024 config: NAME STATE READ WRITE CKSUM pool ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 /dev/sdb2 ONLINE 0 0 0 /dev/sde2 ONLINE 0 0 0 errors: No known data errors I also have a number of VMs and Apps. Apps I can recreate using Unraid apps, but not sure if I can import VMs.
September 6, 20241 yr Community Expert 1 hour ago, simdim said: I wonder if just exporting pools and importing them into Unraid will do the trick? Not at the moment, they are using partition #2 for zfs, this is the default with TrueNAS because it creates a swap partition first, Unraid should be able to import these soon, but for now you can import them only after manually adjusting the partition layout for all disks: https://forums.unraid.net/topic/153274-how-to-non-irreversibly-migrate-from-truenas-core-with-zfs-to-unraid/?do=findComment&comment=1369139
September 8, 20241 yr Author Thank you. After careful examination of the solution, I see two problems - 1. My pools are on the lates TN Scale ZFS and it may not be supported by current 6.x train ... 2. I am wondering if removing SWAP will be a one way ticket and it will prevent me from moving back to TN if something will not green with me on Unraid. Sounds like I need to bring it up in virtual environment, create a disposable pool on TN and see if I can import it and go back.
September 8, 20241 yr Community Expert 4 hours ago, simdim said: and it may not be supported by current 6.x If the pool was create or update with latest Scale you would need to use v7.0.0-beta 4 hours ago, simdim said: if removing SWAP will be a one way ticket and it will prevent me from moving back to TN It doesn't, TrueNAS will re-import the pool as if nothing happened, swap is optional with TrueNAS, and the current default for new pools is no swap.
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