install issue with bionic packaging -- bind9/bionic 1:9.16.3-1+ubuntu18.04.1+isc+2

Ondřej Surý ondrej at
Wed May 20 10:42:14 UTC 2020

Hi Marcel,

this is unfortunately side-effect of how the PPA is provided.  The bind9
package needs debhelper 10 to build, but for Ubuntu Xenial, the debhelper
>= 10 is provided only in xenial-backports.

Unfortunately, the PPA has only one „knob“ that either enables backports
for all Ubuntu releases or none, which in turn leads to bionic-backports
to be enabled which pulls newer build toolchain which in turn adds dependency
on init-system-helpers >= 1.54.

Let me try if I can tweak the dependencies, so I can build with a default set
of dependencies. Meanwhile you can add bionic-backports to your apt sources.list
to solve the missing dependency.

Ondřej Surý
ondrej at

> On 20 May 2020, at 12:32, Marcel de Riedmatten <mdr at> wrote:
> Hi all
> Can't seems to find a better place to voice an issue with the
> installation of the latest packaging for ubuntu bionic which has home
> at
> I meet a dependency issue concerning init-system-helpers which is
> currently 1.51 and is asked to be 1.54. Can somebody confirms that ?
> screen copy
> ===========
> root at slavedns:~# apt install bind9
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Some packages could not be installed. This may mean that you have
> requested an impossible situation or if you are using the unstable
> distribution that some required packages have not yet been created
> or been moved out of Incoming.
> The following information may help to resolve the situation:
> The following packages have unmet dependencies:
>  bind9 : PreDepends: init-system-helpers (>= 1.54~) but 1.51 is to be
> installed
> E: Unable to correct problems, you have held broken packages.
> --
> Marcel de Riedmatten
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