Control: reassign 1016644 debconf
Control: retitle 1016644 debconf-set-selections: Please allow to preseed the 
'error' type
Control: affects 1016644 simple-cdd

On 2022-08-04, Arnaud Rebillout wrote:
> Lately I tried to preseed a question of the type 'error', and it wasn't
> really straightforward.
>
> Such a question can be seen in the package encfs, at:
> https://sources.debian.org/src/encfs/1.9.5-1/debian/encfs.templates
>
> The template looks like that:
>
>   Template: encfs/security-information
>   Type: error
>   _Description: Encfs security information
>    According to a security audit by Taylor Hornby (Defuse Security), the 
> current
>    [...]
>
> In effect, when the package encfs is installed by the Debian installer,
> it displays an error message. It's not really a question, it's simply an
> error message.
>
> I tried to use preseeding to prevent the Debian installer from showing
> this message. The tentative preseed line that I applied was:
>
>   encfs encfs/security-information seen true
>
> However, this leads to a build failure in live-build-config:
>
>   $ ./build.sh --verbose --installer --variant netinst
>   [...]
>   2022-08-04 10:05:37,846 DEBUG Checking configuration...
>   error: Cannot find a question for encfs/security-information
>   2022-08-04 10:05:38,016 ERROR preseed file invalid:
>     <<LBDIR>>/simple-cdd/profiles/default.preseed

Where does this build.sh script come from? What is it calling?  Not sure
how "live-build-config" is involved here. Please share the script so we
know what's actually being called.

This does sound likely to be simple-cdd calling out to debconf's
debconf-set-selections --checkonly ... so reassigning to debconf.


> Fortunately, there's a workaround! We have to apply this preseeding instead:
>
>   encfs encfs/security-information boolean true
>   encfs encfs/security-information seen true

At least there's a workaround...


> It seems like the first line is enough to trick simple-cdd/debconf into
> accepting the second line. This workaround has been use to build the
> Kali Linux ISOs:
> https://gitlab.com/kalilinux/build-scripts/live-build-config/-/commit/d9040785
>
> Note that the error message above seems to come from debconf, and I
> wonder if it can be solved by adding 'error' to the list of known types
> here: 
> https://sources.debian.org/src/debconf/1.5.79/debconf-set-selections/#L154
>
> To finish this report, a few URLs showing that other people struggle
> with this issue:
> - https://bugs.launchpad.net/ubuntu/+source/encfs/+bug/1672827
> - https://askubuntu.com/q/1401467/424636

Thanks for providing follow-up links...


live well,
  vagrant

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