diff --git a/kernel_5.4/install.sh b/kernel_5.4/install.sh
index 2e0fdc2..512c9f2 100644
--- a/kernel_5.4/install.sh
+++ b/kernel_5.4/install.sh
@@ -1,17 +1,24 @@
 #!/bin/bash
 set -euo pipefail
 
-yum remove -y kernel-tools-libs-3.10.0
-yum remove -y kernel-tools-3.10.0
-
-cd 1 && yum install -y ./* && cd ..
-cd 2 && yum install -y ./* && cd ..
+yum install -y 1/*
 
+echo "当前系统安装的内核有:"
 awk -F\' '$1=="menuentry " {print i++ " : " $2}' /etc/grub2.cfg
-grub2-set-default 0
+
+KERNEL_ID=$(awk -F\' '$1=="menuentry " {print i++ ": " $2}' /etc/grub2.cfg | grep 5.4 | awk -F : '{print $1}')
+echo "设置启动项为: $KERNEL_ID"
+grub2-set-default $KERNEL_ID
 
 ## 生成grub配置
 grub2-mkconfig -o /boot/grub2/grub.cfg
 
-# 删除旧内核（可选）
+
+
+
+# # 更新kernel tools
+# yum remove -y kernel-tools-libs-3.10.0
+# yum remove -y kernel-tools-3.10.0
+# yum install -y 2/*
+# # 删除旧内核（可选）
 # yum remove -y kernel-3.10.0