Description of problem:

Currently to support netboot(PXE) on efi or UEFI the label must be Netboot.  Some UEFI bios's don't support changing the label making this difficult.  Worse, some use the same label for multiple NIC's making it difficult to select via label.

This patch switches the code to rely on BootCurrent which will always be Netboot if the system was doing a Netboot install.

This means the admin just needs to make sure the initial bootorder has netboot first and subsequent installs will keep it first.

Version-Release number of selected component (if applicable):
0.14.1

diff --git a/Server/bkr/server/snippets/rhts_post b/Server/bkr/server/snippets/rhts_post
index cf857a4..297d888 100644
--- a/Server/bkr/server/snippets/rhts_post
+++ b/Server/bkr/server/snippets/rhts_post
@@ -79,8 +79,7 @@ fi
 # If efibootmgr exists then re-order boot options
 if [ -x '/usr/sbin/efibootmgr' ]; then
     BOOT=$(/usr/sbin/efibootmgr -v | grep BootOrder | awk '{print $2}' | awk -F, '{print $1}')
-    EFI=$(/usr/sbin/efibootmgr -v | grep Boot$BOOT | awk '{print $NF}')
-    PXE_SLOT=$(/usr/sbin/efibootmgr -v | grep -Ei '(netboot|pxe)' |head -n 1 |cut -c5-8)
+    PXE_SLOT=$(/usr/sbin/efibootmgr -v | grep -i BootCurrent | awk '{print $2}')
     # If There is no Netboot Entry we can't continue
     # You have to manually setup a Netboot entry first
     # from EFI maint menu.