Bug#1111649: apt: Fails to detect systemd on mdadm system during dist-upgrade

["Adam D. Barratt" <adam@adam-barratt.org.uk>]

Control: reassign -1 mdadm 4.4-11

On Wed, 2025-08-20 at 15:09 +0000, Thorsten Behrens wrote:

[...]
>    I am coming from a Debian 12 system to Debian 13 using apt dist-
> upgrade. This gives me an error message
>    that systemd cannot be found. The system uses mdadm and is a bare
> metal server by provider OVH. In
>    some cases when testing this, grub EFI wasn't updated and restart
> failed.
[...]
>      apt showed an error message:
>      ```
>      no systemd init system detected
> 
>      The root filesystem of this system was detected to be on a RAID
> device, so mdadm might be required to run during boot to properly
> start your system.
> 
>      Beginning with newer versions of the madm package, init-system
> integration is available for systemd only. This system seems to use
> an alternative init-system which might or might not leave your system
> unbootable and will not run any of the maintenance jobs
> automatically.

That error message is being producd by the mdadm package. Thus
reassigning this bug there.

Regards,

Adam