From 43da5c516d66a496791fb2d7140da5c816c45d96 Mon Sep 17 00:00:00 2001
From: WANG Chao <chaowang@redhat.com>
Date: Thu, 27 Jun 2013 23:42:07 +0800
Subject: [PATCH] mkdumprd: get_persistent_dev() return original dev if no
 persistent dev exists.

kvm virtio-blk device, for example /dev/vdb, doesn't have serial id by
default. So there's no persistent device node under /dev/disk/ for
/dev/vdb.
In case no persistent dev for dump target, we should use the original
device name directly, not failing the mkdumprd.

v2: update warn message from Vivek.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
---
 mkdumprd | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mkdumprd b/mkdumprd
index b408b37..69c91a5 100644
--- a/mkdumprd
+++ b/mkdumprd
@@ -41,7 +41,8 @@ get_persistent_dev() {
         fi
     done
 
-    perror_exit "Persistent device name of $1 is not found."
+    perror "WARNING: Persistent device name of $1 not found. Using $1 as dump target name"
+    echo $1
 }
 
 add_dracut_arg() {