Known TODOs
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-* "fai dirinstall" does not seem to always exit according to what happend during
-the build; make sure to exit on any error (check logs for stuff like "dpkg:
-error processing" [software.log], "FAILED with exit code" [shell.log],...)
-
* support something like a directory /etc/grml/fai/packages to install
additional Debian packages without the need for a Debian repository