Foreman UEFI Provisioning Grub Failure

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5

We had the same symptoms. Configs were actually in the right place but there was an unescaped “&” in the kickstart url.

I had to apply this patch to the kickstart_kernel_options.erb snippet:

--- kickstart_kernel_options.erb.bak    2022-10-05 12:45:51.881297101 +0200
+++ kickstart_kernel_options.erb        2022-10-05 14:20:02.506937027 +0200
@@ -35,19 +35,19 @@
   # both current and legacy syntax provided
   if (is_fedora && os_major >= 33) || (rhel_compatible && os_major >= 9)
     if subnet4 && !subnet4.dhcp_boot_mode?
-      options.push("inst.ks=#{foreman_url('provision', static: '1')}")
+      options.push("inst.ks=#{foreman_url('provision', static: '1').gsub("&", "\\\\&")}")
     elsif subnet6 && !subnet6.dhcp_boot_mode?
-      options.push("inst.ks=#{foreman_url('provision', static6: '1')}")
+      options.push("inst.ks=#{foreman_url('provision', static6: '1').gsub("&", "\\\\&")}")
     else
-      options.push("inst.ks=#{foreman_url('provision')}", "inst.ks.sendmac")
+      options.push("inst.ks=#{foreman_url('provision').gsub("&", "\\\\&")}", "inst.ks.sendmac")
     end
   else
     if subnet4 && !subnet4.dhcp_boot_mode?
-      options.push("ks=#{foreman_url('provision', static: '1')}")
+      options.push("ks=#{foreman_url('provision', static: '1').gsub("&", "\\\\&")}")
     elsif subnet6 && !subnet6.dhcp_boot_mode?
-      options.push("ks=#{foreman_url('provision', static6: '1')}")
+      options.push("ks=#{foreman_url('provision', static6: '1').gsub("&", "\\\\&")}")
     else
-      options.push("ks=#{foreman_url('provision')}", "kssendmac", "ks.sendmac")
+      options.push("ks=#{foreman_url('provision').gsub("&", "\\\\&")}", "kssendmac", "ks.sendmac")
     end
   end
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