diff --color -Nur oz-0.17.0.orig/oz/Fedora.py oz-0.17.0/oz/Fedora.py
--- oz-0.17.0.orig/oz/Fedora.py	2021-02-09 10:13:48.015870550 -0800
+++ oz-0.17.0/oz/Fedora.py	2021-02-09 12:17:24.056301714 -0800
@@ -276,20 +276,20 @@
         self._copy_kickstart(os.path.join(self.iso_contents, "ks.cfg"))
 
         if self.config.use_dev_cdrom_device:
-            initrdline = "  append initrd=initrd.img ks=cdrom:/dev/cdrom:/ks.cfg"
+            initrdline = "  append initrd=initrd.img inst.ks=cdrom:/dev/cdrom:/ks.cfg"
         else:
-            initrdline = "  append initrd=initrd.img ks=cdrom:/ks.cfg"
+            initrdline = "  append initrd=initrd.img inst.ks=cdrom:/ks.cfg"
         if self.tdl.installtype == "url":
             if self.config.haverepo:
-                initrdline += " repo="
+                initrdline += " inst.repo="
             else:
-                initrdline += " method="
+                initrdline += " inst.method="
             initrdline += self.url
         else:
             # if the installtype is iso, then due to a bug in anaconda we leave
             # out the method completely
             if not self.config.brokenisomethod:
-                initrdline += " method=cdrom:/dev/cdrom"
+                initrdline += " inst.method=cdrom:/dev/cdrom"
         self._modify_isolinux(initrdline)
 
     def generate_diskimage(self, size=10, force=False):
diff --color -Nur oz-0.17.0.orig/oz/RedHat.py oz-0.17.0/oz/RedHat.py
--- oz-0.17.0.orig/oz/RedHat.py	2021-02-09 10:13:48.011870545 -0800
+++ oz-0.17.0/oz/RedHat.py	2021-02-09 12:17:36.910316424 -0800
@@ -78,7 +78,7 @@
         self.initrdcache = os.path.join(self.data_dir, "kernels",
                                         self.tdl.distro + self.tdl.update + self.tdl.arch + "-ramdisk")
 
-        self.cmdline = "method=" + self.url + " ks=file:/ks.cfg"
+        self.cmdline = "inst.method=" + self.url + " inst.ks=file:/ks.cfg"
         if self.tdl.kernel_param:
             self.cmdline += " " + self.tdl.kernel_param