Am Freitag, dem 29.12.2023 um 02:46 +0800 schrieb Shengjing Zhu:
> On Tue, Dec 26, 2023 at 5:48 AM Michael Tokarev <m...@tls.msk.ru> wrote:
> > 
> > On Sat, 16 Dec 2023 14:54:32 +0100 Wolfgang Rohdewald 
> > <wolfg...@rohdewald.de> wrote:
> > > Package: docker.io
> > > Version: 20.10.24+dfsg1-1+b3
> > > Severity: critical
> > > Justification: breaks unrelated software
> > > 
> > > Dear Maintainer,
> > > 
> > >    * What led up to the situation?
> > > 
> > > installed docker.io with existing qemu guests in bridge mode, did not do
> > > anything else.
> > 
> > This seems to be because docker includes some firewall rules which does not
> > play nice with existing firewall rules.  For example, in my case I use
> > nftables, and after docker.io is installed, I had to
> > 
> 
> Does the suggestion on
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=865975 help?

In my original post, I showed a solution for my situation. But that is out
of the scope of this bug report.

To repeat: Installing docker.io breaks unrelated software. Even before
using docker.io, the installation process by itself breaks unrelated software.

If maintainers really think this is acceptable behaviour, IMHO the preinst 
script
MUST show a big fat warning BEFORE docker.io is installed. And maybe offer 
choices
for solutions.

-- 
mit freundlichen Grüssen

Wolfgang Rohdewald

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