Re: Bug#1108193: apt: Ordering issue with libc6:i386 on amd64-m-a system breaks partial upgrade ("just apt and dpkg") from bookworm to trixie
On Mon, Jun 23, 2025 at 04:58:34PM +0200, Helmut Grohne wrote:
> On Sun, Jun 22, 2025 at 11:05:03PM +0200, Helmut Grohne wrote:
> > mmdebstrap --variant=apt --architectures=amd64,i386 --include=systemd-timesyncd,libc6-dbg:i386 --chrooted-customize-hook='sed -i -e s/bookworm/trixie/ /etc/apt/sources.list && apt update && apt-get -y install apt' bookworm /dev/null
>
> Further observations.
> * We may install libc6 instead of apt.
> * We may include systemd-container instead of systemd-timesyncd.
> * If we include systemd-resolved or systemd-boot instead of
> systemd-timesyncd, the problem does not reproduce.
> * trixie's libc6 Breaks: system (<< trixie).
> * trixie's systemd Pre-Depends: libsystemd-shared (= ...)
> * trixie's libsystemd-shared Depends: libc6 (>= trixie)
> * All of systemd-container, systemd-resolved, systemd-boot and
> * systemd-timesyncd Conflicts: systemd (<< trixie).
> * In the apt log you may see that apt unpacks libsystemd-shared and
> only then considers deconfiguring systemd (which Depends:
> libsystemd-shared (= ...)). Why is that legal?
I do not have the time to investigate this in the foreseeable
future. I may be able to get into it at DebCamp.
That being said, it's entirely possible there is a loop here,
and APT breaks the loop in a way dpkg isn't happy about; this
also doesn't neccessarily have to be "legal". It's more "there
is no correct solution, but we don't want to give up, so we do
random shit".
--
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