+# work around /etc/kernel/postinst.d/zz-update-grub failing
+# inside openvz environment, see #597084
+if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/update-grub' ; then
+ echo "Diverting update-grub executable"
+ $ROOTCMD dpkg-divert --rename --add /usr/sbin/update-grub
+ $ROOTCMD ln -s /bin/true /usr/sbin/update-grub
+fi
+
+# work around a bug which causes openvz to freeze when grub-probe is invoked
+if ! $ROOTCMD dpkg-divert --list | grep -q '/usr/sbin/grub-probe' ; then
+ echo "Diverting grub-probe executable"
+ $ROOTCMD dpkg-divert --rename --add /usr/sbin/grub-probe
+ $ROOTCMD ln -s /bin/true /usr/sbin/grub-probe
+fi
+
+# 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
+fi
+
+if $FILE_RC ; then
+ echo "Installing file-rc as FILE_RC class is enabled."
+ # newer aptitude versions won't remove essential packages using
+ # 'aptitude -f -y install file-rc' anymore, therefore force it via:
+ $ROOTCMD aptitude -o Aptitude::ProblemResolver::Keep-All-Tier=60000 -f -y install file-rc systemd-sysv-
+fi
+# }}}