Description of the problem:
ks_meta "grubport=" is expected to be translated into "--port=" option of grub. However, it does not happen on UEFI-based systems.
"grubport=" is used for systems where "--port=" grub option is necessary for reliable specification of serial port.

Version-Release number of selected component (if applicable):
beaker-0.16.1-1.el6eng.noarch

How reproducible:
Always on UEFI-based system

Steps to Reproduce:
1. Add "grubport=0x2f8" for systems's "Kickstart Metadata"
2. Provision the system
3. Check grub configuration

Actual behavior:
grub config file (*) does not contain "--port=0x2f8" option
(*) config file path
    - /boot/efi/EFI/redhat/grub.conf (grub1, e.g. RHEL6)
    - /boot/efi/EFI/redhat/grub.cfg (grub2, e.g. RHEL7)

Expected behavior:
grub config file should contain "--port=0x2f8" option


Additional Information:

rhts_post snippet handles "grubport=". The snippet tries to apply the "--port=" change to appropriate grub config file. However, it misses the fact that the config file location is different on legacy BIOS system and UEFI system.

The problem can be fixed by the following patch.
Tested on RHEL6.5 and RHEL7.0, for both legacy BIOS system and UEFI system.

--- a/rhts_post	2014-03-26 00:16:45.000000000 -0400
+++ b/rhts_post	2014-06-11 21:04:08.000000000 -0400
@@ -70,11 +70,21 @@ fi
 {#
 #/bin/sed -i 's/^serial.*/serial --port={{ grubport }} --speed=115200/' /boot/grub/grub.conf
 #}
-if [ -e "/boot/grub/grub.conf" ]; then
-    /bin/sed -i 's/^\(serial.*\)--unit=\S\+\(.*\)$/\1--port={{ grubport }}\2/' /boot/grub/grub.conf
+if [ -e "/boot/grub/grub.conf" -o -e "/boot/efi/EFI/redhat/grub.conf" ]; then
+    if [ -d "/sys/firmware/efi" ]; then
+        GRUBCONF="/boot/efi/EFI/redhat/grub.conf"
+    else
+        GRUBCONF="/boot/grub/grub.conf"
+    fi
+    /bin/sed -i 's/^\(serial.*\)--unit=\S\+\(.*\)$/\1--port={{ grubport }}\2/' $GRUBCONF
 elif [ -e "/etc/default/grub" ]; then
+    if [ -d "/sys/firmware/efi" ]; then
+        GRUBCONF="/boot/efi/EFI/redhat/grub.cfg"
+    else
+        GRUBCONF="/boot/grub2/grub.cfg"
+    fi
     /bin/sed -i '/^GRUB_SERIAL_COMMAND="serial/ {s/--unit=[0-9]\+//; s/"$/ --port={{ grubport }}"/}' /etc/default/grub
-    /sbin/grub2-mkconfig -o /boot/grub2/grub.cfg
+    /sbin/grub2-mkconfig -o $GRUBCONF
 fi
 {% endif %}