diff --git a/README.md b/README.md
index 761e87dac..813e9d06d 100755
--- a/README.md
+++ b/README.md
@@ -5,8 +5,8 @@
[](https://codecov.io/gh/ossrs/srs/branch/develop)
[](https://github.com/ossrs/srs/wiki/v1_CN_Contact#wechat)
-SRS/4.0，[Leo][release4]，是一个流媒体直播集群，高效、稳定、易用，简单而快乐。
-SRS(Simple RTMP Server) is a live streaming cluster, high efficiency, stable and simple.
+SRS/4.0，[Leo][release4]，是一个流媒体集群，支持RTMP/HLS/WebRTC/SRT/GB28181，高效、稳定、易用，简单而快乐。
+SRS is a RTMP/HLS/WebRTC/SRT/GB28181 streaming cluster, high efficiency, stable and simple.
> Remark: Although SRS is licenced under [MIT][LICENSE], but there are some depended libraries which are distributed using their own licenses, please read [License Mixing][LicenseMixing].
@@ -325,7 +325,6 @@ For previous versions, please read:
* v3.0, 2016-12-15, fix [#717][bug #717], [#691][bug #691], http api/static/stream support cors. 3.0.9
* v3.0, 2016-12-08, Fix [#105][bug #105], support log rotate signal SIGUSR1. 3.0.8
* v3.0, 2016-12-07, fix typo and refine grammar. 3.0.7
-* v3.0, 2015-10-23, fix [#467][bug #467], support write log to kafka. 3.0.6
* v3.0, 2015-10-20, fix [#502][bug #502], support snapshot with http-callback or transcoder. 3.0.5
* v3.0, 2015-09-19, support amf0 and json to convert with each other.
* v3.0, 2015-09-19, json objects support dumps to string.
diff --git a/trunk/conf/full.conf b/trunk/conf/full.conf
index 3c8abe1c6..3457350b9 100644
--- a/trunk/conf/full.conf
+++ b/trunk/conf/full.conf
@@ -325,25 +325,6 @@ rtc {
candidate *;
}
-#############################################################################################
-# Kafka sections
-#############################################################################################
-# Apache Kafka is a high-throughput distributed messaging system.
-# SRS is a Kafka producer to send message to kafka.
-# @see https://kafka.apache.org/documentation.html#introduction
-kafka {
- # whether enabled kafka.
- # default: off
- enabled off;
- # the broker list, broker is
- # and use space to specify multple brokers.
- # for example, 127.0.0.1:9092 127.0.0.1:9093
- brokers 127.0.0.1:9092;
- # the kafka topic to use.
- # default: srs
- topic srs;
-}
-
#############################################################################################
# RTMP/HTTP VHOST sections
#############################################################################################
diff --git a/trunk/scripts/install.sh b/trunk/scripts/install.sh
index 3a1c6292a..6f161b13f 100755
--- a/trunk/scripts/install.sh
+++ b/trunk/scripts/install.sh
@@ -23,7 +23,7 @@ ret=$?; if [[ $ret -ne 0 ]]; then exit $ret; fi
# check lsb_release
ok_msg "check tools"
lsb_release -v >/dev/null 2>&1; ret=$?
-if [[ $ret -ne 0 ]]; then failed_msg "abort, please install lsb_release"; exit $ret; fi
+if [[ $ret -ne 0 ]]; then failed_msg "no lsb_release, install: yum install -y redhat-lsb"; exit $ret; fi
# user must stop service first.
ok_msg "check previous install"