From ff33b576767d5e020c9f2685a0f5b0acb35a781c Mon Sep 17 00:00:00 2001
From: Thomas Renninger <trenn@suse.de>
Date: Fri, 27 Sep 2013 20:10:38 +0200
Subject: [PATCH] dracut: Do not create early_cpio if no suitable microcode
 exist in hostonly case

Intel microcodes only exist for very specific family/model/stepping CPUs.
If no microcode gets added, there is no need to create an empty
(only directories) cpio later that gets glued to the initrd.

This also fixes:

*** Constructing GenuineIntel.bin ****
cat: /lib/firmware/intel-ucode/06-3c-03: No such file or directory

in hostonly mode if there is no suitable microcode for the CPU.

Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
---
 dracut.sh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/dracut.sh b/dracut.sh
index b3b80886..e43227e8 100755
--- a/dracut.sh
+++ b/dracut.sh
@@ -1326,12 +1326,15 @@ if [[ $early_microcode = yes ]]; then
                 dinfo "*** Constructing ${ucode_dest[$idx]} ****"
                 if [[ $hostonly ]]; then
                     _src=$(get_ucode_file)
+                    if ! [[ -r $_fwdir/$_fw/$_src ]];then
+                        break;
+                    fi
                 fi
                 cat $_fwdir/$_fw/$_src > $_dest_dir/${ucode_dest[$idx]}
+                create_early_cpio="yes"
             fi
         done
     done
-    create_early_cpio="yes"
 fi
 
 rm -f -- "$outfile"