However I've a question regarding pkgsrc. There are several own-backed
pkgsrc packages (build is performed always on the backup machine, and pkgin
is used to update the online server) installed.
What do you mean by own-backed? Using builtin libraries?
When you upgrade, the old library versions stay around, so old
packages continue to work -- with the exception of things depending on
osabi, which might break.
To be in a supported configuration, it would make sense to rebuild all
packages in the right order. For instance, do
pkg_admin set rebuild=YES \*
pkg_rolling-replace -v
on the backup, then copy over the resulting binary packages and
install them on the other machine.
Or change the pkgin repository to 8.0_2019Q1 and do a "pkgin full-upgrade".
--
Benny