The basis of using the Omnia router … is automatic system updates. If you’re frozen (unknown reason) on the archaic version, you can try the automatic update and maybe worry about finding solutions to possible problems. Much easier, I think, is a clean installation of the current medkit of the latest TOS 5.x.x and configuration settings as needed
Any idea of when a stable release might be available?
So to be clear, we’re talking about migration procedure between pretty old TOS 3 to contemporary turris OS 5. Let me correct my statement above - I was first unsure what kind of upgrade do you mean.
I personally do not expect significant effort is going to be spent to improve migration scripts - so I think wait for some rainy afternoon, and after full backup of your device performing the fresh install of current release could be the RightWay™.
Personally I went with the fresh install. as from my experience, to deploy the proper config is often faster than trying to fix system being in broken or undefined state.