On 11 Aug 2021, at 20:09, Warner Losh <i...@bsdimp.com> wrote: > > On Wed, Aug 11, 2021, 12:01 PM Paul Mather <p...@gromit.dlib.vt.edu> wrote: >> On Aug 11, 2021, at 1:44 PM, Dimitry Andric <d...@freebsd.org> wrote: >>> On 11 Aug 2021, at 05:13, Eugene Grosbein <eu...@grosbein.net> wrote: >>>> >>>> I'm in process of upgrading very old remote FreeBSD server running >> 9.3-STABLE/amd64. ... >>> The best way forward is to attempt to buildworld (and buildkernel) with >>> a clean stable/11 checkout at r360783, which is just before clang 10.0.0 >>> got imported. You will also need to add: >>> >>> CXXFLAGS.clang=-Wno-out-of-line-declaration >>> >>> to your src.conf, otherwise it will get an unexpected error during the >>> build. >>> >>> After this has completed, install world and kernel and reboot, and then >>> you should have clang 9.0.0 and the corresponding libc++. This should >>> allow you to do a regular update to the latest stable/11. >>> >>> From there you should upgrade to stable/12, as 11 is going EOL in about >>> a month... :) >> >> >> As the OP is currently at 10-STABLE, would it also not work to upgrade >> from there to 11.0-RELEASE (releng/11.0) and then from there to do the >> recommended upgrade path to whatever is the desired endpoint? It might >> require more work, but it would be a known supported upgrade path. Just >> wondering... >> > > In theory, going from the tip of stable/10 to releng/11.0 should work as > lots of people did that back when 11.0 was new... from there you can follow > dim's instructions to get to the tip of stable/11 and from there to 12.2 or > stable/12. I have not tried that lately as I've retired even my old 10.x > testing jails some tie ago.
There are multiple ways to do this, as usual. I have verified that on a default installation of 10.4-RELEASE, I can follow the scenario that I wrote up, and it successfully upgrades to stable/11 r360783, with clang 9.0.0. That can certainly be used to go to the tip of stable/11, but I think it is also possible to upgrade right to stable/12 from there. -Dimitry
