Bug#539425: On upgrade of existing system, dash becomes system default if debconf non-interactive

On 2009-07-31 20:16 +0200, Frans Pop wrote:

> During the upgrade of a pbuilder environment I noticed that if
> DEBIAN_FRONTEND=noninteractive, and possibly also if debconf is
> not available at all, dash - when not previously installed - can
> not ask its question and will thus become the default system
> shell, which is not what we want.
>
> This use case should IMO be recognized in the maintainer scripts
> and handled appropriately so that the default system shell
> remains unchanged for *all* existing systems.

Wasn't the plan to do this differently in noninteractive installs,
precisely because dash should become the default /bin/sh on build
systems?

Sven



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