Hello everyone: I have a TrueCore VM that I have been using for about 3 years now just as a NFS and SMB storage depot. It’s a pretty minimal TrueNAS system. Question is, how safe is a TrueCore 13.0-U6.7 to TrueNAS Scale 25.04.2.6 upgrade?
Without vms or jails it should be pretty straightforward
Welcome to the forums.
I just did the two-step upgrade via the GUI on my primary system last weekend with no problems whatsoever. My 13.0 had NFS and SMB storage, no jails. My backup machine is already on Scale for 6 months or so.
I found the guide at Preparing to Migrate | TrueNAS Documentation Hub to be helpful and provided confidence.
Good luck.
Alrighty, the TrueNAS Core 13.0-U6.7 to TrueNAS Scale 24.04.2.5 upgrade was successful. Now on to the TrueNAS Scale 24.04.2.5 to TrueNAS Scale 25.04.2.6 upgrade. 
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