diff --git a/kdumpctl b/kdumpctl
index 41a70a8..d7f25d9 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -184,10 +184,6 @@ prepare_cmdline()
 
 	if [ -z "$KDUMP_COMMANDLINE" ]; then
 		cmdline=`cat /proc/cmdline`
-		# 'root' parameter will cause kdump failure in live images
-		if [[ ${cmdline} == *"root=live:"* ]]; then
-		    KDUMP_COMMANDLINE_REMOVE="${KDUMP_COMMANDLINE_REMOVE} root"
-		fi
 	else
 		cmdline=${KDUMP_COMMANDLINE}
 	fi
diff --git a/live-image-kdump-howto.txt b/live-image-kdump-howto.txt
index e0bc9f1..1695a1c 100644
--- a/live-image-kdump-howto.txt
+++ b/live-image-kdump-howto.txt
@@ -13,6 +13,8 @@ When kdump kernel boots in a live environment, the default target /var/crash is
 in RAM so you need to change the dump target to an external disk or a network
 dump target.
 
+Besides, make sure that "default dump_to_rootfs" is not specified.
+
 3. Start kdump service
 
     $ kdumpctl start