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On Tue, Oct 14, 2025 at 09:03:40AM +0200, Erwan David wrote: > Hello, > > I do not understand how to use etcupdate. I am lost in the different options. > s there somewhere a tutorial on its usage ? The general reference I use for updating FreeBSD, which discusses several different methods (src, binary, etc): https://docs.freebsd.org/en/books/handbook/cutting-edge/ For upgrading systems from src (*not* pkgbase or freebsd-update) I use this as a reference: "26.6. Updating FreeBSD from Source" https://docs.freebsd.org/en/books/handbook/cutting-edge/#makeworld There are several examples and walk-thru, both quickstart and more thorough + annotated. For etcupdate in particular, there is this specific section: "26.6.6.1. Merging Configuration Files with etcupdate(8)" https://docs.freebsd.org/en/books/handbook/cutting-edge/#updating-src-completing-merge-etcupdate in general, in my experience there isn't usually a lot you need to do most times for etcupdate to work. I run it with every world src upgrade procedure as advised, so my /etc/ doesn't grow stale or drift from the installed binaries and such. > PS: on a machine that juste went from 14.2 to 14.3, etcuodate diff > shows diff, but etcupdate says > Failed to build new tree. > > Is it because src is not on the machine ? (not enough disk) That's a possibility; etcupdate is for upgrading systems from src (not freebsd-update binary upgrades) and it constructs its list of diffs and changes from /usr/src/etc/ for reference. > I soon will upgrade another machine (with /usr/src this one), and I'd > prefer to be sure to be able to use etcupdate on it (especially if I > need to to a extract or build before upgrade) If you're just getting started building FreeBSD from src, it's worth reading that whole Handbook chapter 26.6 IME. sr.
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