Workaround for customers running Satellite 6.12.2:

Create a patch file named /root/kickstart_kernel_options_fix.patch with the following content:

~~~
--- original.erb	2023-02-10 15:16:54.429723695 -0500
+++ fix.erb	2023-02-10 15:18:37.722730201 -0500
@@ -39,19 +39,19 @@
   # 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
~~~

Run the following commands:

TEMPLATE_ID=$(hammer template list --search name=kickstart_kernel_options --fields id |grep -v -e 'ID' -e '^-')
cp /usr/share/foreman/app/views/unattended/provisioning_templates/snippet/kickstart_kernel_options.erb /root/kickstart_kernel_options_fix.erb
patch -p1 /root/kickstart_kernel_options_fix.erb < /root/kickstart_kernel_options_fix.patch 
hammer template update --locked false --id $TEMPLATE_ID
hammer template import --name kickstart_kernel_options --file /root/kickstart_kernel_options_fix.erb
hammer template update --locked true --id $TEMPLATE_ID

same problem here.

need to force "BIOS mode" in VMware to start the VM

Hello 

Have a look at comment #1 for a workaround: https://bugzilla.redhat.com/show_bug.cgi?id=2168967#c1

It was marked private, but I don't see a reason to keep it that way.

If you're a Red Hat customer, you can also find the workaround here: https://access.redhat.com/solutions/6997923

Hi,
in upstream PR [0] is suggested to use different approach,
instead of escaping special chars just quote the URL.
Could you please confirm the fix?

[0] https://github.com/theforeman/foreman/pull/9582/files

Hello

While quoting would work for Grub2 and solve the problem described in this BZ, using a quoted URL would break BIOS provisioning which uses Grub.

Escaping works in both scenarios and that's why I proposed escaping in my PR.

*** Bug 2172545 has been marked as a duplicate of this bug. ***

Moving to POST as PR is merged upstream.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (Important: Satellite 6.13 Release), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2023:2097

*** Bug 2242913 has been marked as a duplicate of this bug. ***