On Tue, 7 Apr 2020, Alexander Kanavin wrote:

> These run

> - at image creation time in the context of package manager
>   (dnf/apt/opkg) installing packages into the image rootfs
>   directory. The code that executes the package manager specifically
>   exports $D into the environment before launching it.

> - at runtime when packages are installed or updated through the same
>   package manager.  Then, $D is absent.
>
> The scripts are written into the package files when the packages
> gets created; they become 'post-install scriptlets' that every
> package manager supports and executes if they are present.

  i assume the same holds for pre-install scriptlets, even though the
docs claim otherwise.

rday
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