Hi Felipe Am 08.09.21 um 19:25 schrieb Michael Biebl:
systemd-timesyncd was split into a separate binary package in bullseye. Transferring the ownership of the conffile from systemd to systemd-timesyncd is a tricky business as dpkg does not have native support for that and so we need to go behind dpkg's back for that.We do have some custom maintainer scripts code where we try to preserve local modifications: https://salsa.debian.org/systemd-team/systemd/-/blob/debian/master/debian/systemd-timesyncd.postinst
This code is based on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=797048 i.e. https://salsa.debian.org/systemd-team/systemd/commit/f5f5028055f25fa733a45265e7c008e06960e0a7 A typescript log from an upgrade is attached.One can see, that systemd-timesyncd.postinst is run before systemd.postinst and as a result timesyncd.conf.dpkg-bak does not exist yet.
Afaics, this could only be fixed with a versioned Pre-Depends on systemd (>= 245.4-2). I don't think a Depends gives us any guarantees regarding the order postinst is run?
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