run-postinsts: for dpkg/opkg, do not rely on /etc/*-postinsts
Start opkg/dpkg as soon as the respective package managers status
file is present, no matter whether /etc/$pm-postinsts exists. This
decouples the implicit link between postinsts scripts in /etc and
the package manager: Currently the package manager is only started
if those scripts are present, although the package manager does not
use those scripts at all! Package managers install their own set of
postinst scripts.
The behavior when using rpm packages stays the same.
Note that using the package managers capability to execute postinst
scripts is preferred for good reasons: It makes sure that the
package managers database reflects that the packages have been
completely installed and configured.
This change allows to drop installation of the postinsts scripts
when package management is present. This will be done in a separate
change.
Note: Before commit
5aae19959a44 ("rootfs.py: Change logic to
unistall packages") rootfs.py did not install /etc/$pm-postinsts
when package management is installed! The change caused YOCTO #8235
which lead to the behavior change of run-postinsts in first place.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
