File kernel_and_initrd_regex.diff of Package cobbler

--- a/config/cobbler/distro_signatures.json
+++ b/config/cobbler/distro_signatures.json
@@ -474,8 +474,8 @@
     "kernel_arch_regex":null,
     "supported_arches":["i386","amd64","ppc64el"],
     "supported_repo_breeds":["apt"],
-    "kernel_file":"(vm)?linux(.*)",
-    "initrd_file":"initrd(.*)\\.gz",
+    "kernel_file":"(linux|vmlinuz(.*))",
+    "initrd_file":"initrd",
     "isolinux_ok":false,
     "default_autoinstall":"sample.seed",
     "kernel_options":"",
@@ -698,38 +698,6 @@
     "boot_files":[],
     "boot_loaders":{"ppc64el":["grub2"]}
    },
-   "artful": {
-    "signatures":["dists", ".disk"],
-    "version_file":"Release|mini-info",
-    "version_file_regex":"Codename: artful|Ubuntu 17.10",
-    "kernel_arch":"linux-headers-(.*)\\.deb",
-    "kernel_arch_regex":null,
-    "supported_arches":["i386","amd64"],
-    "supported_repo_breeds":["apt"],
-    "kernel_file":"linux(.*)",
-    "initrd_file":"initrd(.*)\\.gz",
-    "isolinux_ok":false,
-    "default_autoinstall":"/var/lib/cobbler/kickstarts/sample.seed",
-    "kernel_options":"",
-    "kernel_options_post":"",
-    "boot_files":[]
-   },
-   "bionic": {
-    "signatures":["dists", ".disk"],
-    "version_file":"Release|mini-info",
-    "version_file_regex":"Codename: bionic|Ubuntu 18.04",
-    "kernel_arch":"linux-headers-(.*)\\.deb",
-    "kernel_arch_regex":null,
-    "supported_arches":["i386","amd64"],
-    "supported_repo_breeds":["apt"],
-    "kernel_file":"linux(.*)",
-    "initrd_file":"initrd(.*)\\.gz",
-    "isolinux_ok":false,
-    "default_autoinstall":"/var/lib/cobbler/kickstarts/sample.seed",
-    "kernel_options":"",
-    "kernel_options_post":"",
-    "boot_files":[]
-   },
    "cosmic": {
     "signatures":["dists", ".disk"],
     "version_file":"Release|mini-info",