add dnf support

bin/install_packages

@@ -5,7 +5,7 @@
 # install_packages -- read package config and install packages via apt-get
 #
 # This script is part of FAI (Fully Automatic Installation)
-# (c) 2000-2011, Thomas Lange, lange@informatik.uni-koeln.de
+# (c) 2000-2015, Thomas Lange, lange@informatik.uni-koeln.de
 # (c) 2003-2004, Henning Glawe, glaweh@physik.fu-berlin.de
 # (c) 2004     , Jonas Hoffmann, jhoffman@physik.fu-berlin.de
 # PRELOAD feature from Thomas Gebhardt  <gebhardt@hrz.uni-marburg.de>
@@ -67,7 +67,7 @@ $| = 1;
 
 
 # @commands is the order of the commands that are executed
-our @commands = qw/y2i y2r zypper zypper-rm yast rpmr urpmi urpme yumgroup yumi yumr smarti smartr hold taskrm taskinst clean-internal cupt cupt-r aptitude aptitude-r install unpack remove dselect-upgrade/;
+our @commands = qw/y2i y2r zypper zypper-rm yast rpmr urpmi urpme yumgroup yumi yumr dnfgroup dnfi dnfr smarti smartr hold taskrm taskinst clean-internal cupt cupt-r aptitude aptitude-r install unpack remove dselect-upgrade/;
 %command = (
           "install" => "apt-get $aptopt --fix-missing install",
     "inst-internal" => "apt-get $aptopt --fix-missing -s install",
@@ -90,6 +90,9 @@ our @commands = qw/y2i y2r zypper zypper-rm yast rpmr urpmi urpme yumgroup yumi
              "yumi" => "yum -y install",
              "yumr" => "yum -y remove",
         "yumgroup"  => "yum -y groupinstall",
+             "dnfi" => "dnf -y install",
+             "dnfr" => "dnf -y remove",
+        "dnfgroup"  => "dnf -y group install",
              "y2i"  => "y2pmsh isc",
              "y2r"  => "y2pmsh remove",
              "yast" => "yast -i",