diff --git a/README.md b/README.md
index 05ddc98..3fa4a8d 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,27 @@
 # rockylinux livecd build
 
+构建需要的包
+
+    lorax
+    lorax-templates
+    dracut-live
+    isomd5sum
+    syslinux
+    grub2-efi-x64-modules
+    grub2-pc-modules
+    virt-install
+    qemu-kvm
+    libvirt-daemon-kvm
+
+安装
+
+    sudo dnf install -y lorax lorax-templates dracut-live isomd5sum syslinux grub2-efi-x64-modules grub2-pc-modules virt-install qemu-kvm libvirt-daemon-kvm
+
+启动服务
+
+    sudo systemctl enable --now libvirtd
+    sudo systemctl start libvirtd
+
 运行 build 脚本 进行构建
 
     sh build-rocky9-livecd.sh