diff --git a/install.sh b/install.sh
index 4f78f16..e70070d 100644
--- a/install.sh
+++ b/install.sh
@@ -1771,7 +1771,7 @@ killSleep(){
 }
 # 检查系统
 checkSystem(){
-	if [[ ! -z `find /etc -name "redhat-release"` ]] || [[ ! -z `cat /proc/version | grep -i "centos" | grep -v grep ` ]] || [[ ! -z `cat /proc/version | grep -i "red hat" | grep -v grep ` ]] || [[ ! -z `cat /proc/version | grep -i "redhat" | grep -v grep ` ]]
+	if [[ ! -z `find /etc -name "redhat-release"` ]] || [[ ! -z `cat /proc/version | grep -i "centos" | grep -v grep ` ]]
 	then
 	    centosVersion=`rpm -q centos-release|awk -F "[-]" '{print $3}'|awk -F "[.]" '{print $1}'`
 		release="centos"