-# make sure we prefer grml repository:
-if [ -r /etc/grml/fai/files/etc/apt/preferences ] ; then
- cp /etc/grml/fai/apt/preferences $target/etc/apt/preferences
+# make sure we have file-rc available before package_config/GRML* is being executed {{{
+# the apt-get update might return an error if there's for example
+# a hashsum mismatch on Debian mirror sources, we might want to continue
+# but should warn the user
+if ! $ROOTCMD apt-get update ; then
+ echo "Warning: there was an error executing apt-get update, continuing anyway."
+ echo "Warning: there was an error executing apt-get update, continuing anyway." >&2