Bug#993947: Time lost, /etc/systemd/timesyncd.conf gets replaced with a default one

[Michael Biebl]

Am 09.09.21 um 16:15 schrieb Michael Biebl:
> Am 09.09.21 um 15:15 schrieb Felipe Sateler:
>> It should give us the guarantees[1]:
>>
>>  > The postinst script may be called in the following ways:
>>  > postinst configure most-recently-configured-version
>>  >   The files contained in the package will be unpacked.
>>  >   All package dependencies will at least be “Unpacked”.
>>  >   If there are no circular dependencies involved,
>>  >   all package dependencies will be configured
>>
>> AFAICS we don't have circular dependencies, but maybe the versioned 
>> breaks/replaces + versioned depends makes dpkg think there is one?
> 
> Hm, we do have systemd -> systemd-timesyncd | time-daemon and
>                 systemd-timesyncd -> systemd
> 
> This is a circular dep afaiu.
> 

I guess the only way to break this dep cycle is to drop (or rather 
demote) the Depends: systemd-timesyncd | time-daemon to a Recommends.

To ensure that systemd-timesyncd is installed during the initial 
bootstrap, we'd have to bump it's prio, similar to what we did for 
libpam-systemd. Either important or standard.

Related here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986651

If we can get such a change into bullseye remains to be seen.

Does anyone else have a different idea how to approach this?

Michael

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