Replication from 11.2 to 12 fails

[clicks]

Ok, ok, it might be a niche topic but perhaps it might save someone some time. I was in the situation where I had to replicate an (old) Freenas 11.2 installation to a TrueNas 12 installation. Before anyone asks, an update of the old box was out of question as it suffers from hardware failures which make every reboot a gambling game.
Unfortunately replication always fails as the replication command specified the zfs command on the remote machine, which stores the binary at a different path:
Replication result: zsh:1: no such file or directory: /sbin/zfs

The easiest way to solve the problem was to create a symbolic link for the zfs binary so that it can be found at both locations:

Code:

ln -s /usr/local/sbin/zfs /sbin/zfs

 

[blanchet]

Thank you very much for the tip.

After creating the symbolic link /sbin/zfs -> /usr/local/sbin/zfs to find the zfs binary at both locations, I can replicate dataset from FreeNAS-11.1u7 to TrueNAS 12.0.

I guess that if I want to replicate in the opposite direction, I have to create the opposite symbolic link /usr/local/sbin/zfs -> /sbin/zfs
on the legacy system to find the zfs binary at both locations.

I have a legacy systems that runs FreeNAS-11.u7 because the motherboard boots only with GRUB, so my only upgrade path may be TrueNAS Scale (which is still in development).

 

[blanchet]

The issue is already recorded as

• NAS-107151 (official announcement for the new path for /usr/local/sbin/zfs)
• NAS-107132 (a more detailed ticket with a workaround solution)

 

[GregP]

Thank you so very much for pointing the way. Saved me from having to shut down and upgrade the 11.2 box without a backup.

 

[jallen]

Thank You!!! @clicks

This has been driving me crazy!