fix networking.xml script edit

Author: sus-admin

_posts/2024-12-11-Cobbler-v3.3.7-OpenSUSE-Deployment-Guide.md

@@ -65,13 +65,13 @@ cat /var/lib/cobbler/templates/sample_autoyast.xml | \
 ```shell
 cat /var/lib/cobbler/snippets/networking.xml | \
     grep -v dhcp_resolv | \
-    grep -v keep_install_network | \
+    sed 's,^.*<keep_install_network.*/keep_install_network>,## Figure out if we'\''re automating OS installation for a system or a profile\n#if $getVar('\''system_name'\''\,'\'\'') != '\'\''\n    <keep_install_network config:type="boolean">false</keep_install_network>\n#else\n    <keep_install_network config:type="boolean">true</keep_install_network>\n#end if,' | \
+    sed 's,<managed.*/managed>,<backend>network_manager</backend>,' | \
     sed 's,<nameservers config:type="list">,#if $name_servers and $name_servers[0] != "":\n      <nameservers config:type="list">,' | \
     sed 's,</nameservers>,</nameservers>\n      #end if,' | \
     sed '/    <net-udev config:type="list">/,/    #if $getVar("system_name","") != ""/c\ \ \ \ #if $getVar("system_name","") != ""\n\ \ \ \ <net-udev config:type="list">' | \
     sed -z 's,#end if\n    </net-udev>,</net-udev>\n    #end if,' | \
-    sed 's,<networking>,<networking>\n## Figure out if we'\''re automating OS installation for a system or a profile\n#if $getVar('\''system_name'\''\,'\'\'') != '\'\''\n    <keep_install_network config:type="boolean">false</keep_install_network>\n#else\n    <keep_install_network config:type="boolean">true</keep_install_network>\n#end if,' | \
-    tee /var/lib/cobbler/snippets/suse-15.6-networking.xml
+    tee /var/lib/cobbler/snippets/suse-15.4-networking.xml
 ```
 
 ```shell