diff --git a/10. 日記/2025-11-18(週二).md b/10. 日記/2025-11-18(週二).md
index 42ae7bf..6e8ca90 100644
--- a/10. 日記/2025-11-18(週二).md	
+++ b/10. 日記/2025-11-18(週二).md	
@@ -20,8 +20,41 @@ description:
 	- [Build from source on Linux](https://tensorflow.google.cn/install/source?hl=en#setup_for_linux_and_macos)
 	- [Build from source on Windows](https://tensorflow.google.cn/install/source_windows?hl=en)
 - [CUDA Toolkit 12.9 Update 1 for Ubuntu 24.04](https://developer.nvidia.com/cuda-12-9-1-download-archive?target_os=Linux&target_arch=x86_64&Distribution=Ubuntu&target_version=24.04&target_type=deb_local)
+- [cuDNN 9.16.0](https://developer.nvidia.com/cudnn-downloads?target_os=Linux&target_arch=x86_64&Distribution=Ubuntu&target_version=24.04&target_type=deb_local&Configuration=Full)
 - [cuDNN 與 CUDA Toolkit 版本對照表](https://docs.nvidia.com/deeplearning/cudnn/frontend/v1.16.0/reference/support-matrix.html#support-matrix)
 
+## Install CUDA Toolkit 12.9 for Ubuntu 24.04 x86_64
+```
+wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-ubuntu2404.pin
+sudo mv cuda-ubuntu2404.pin /etc/apt/preferences.d/cuda-repository-pin-600
+wget https://developer.download.nvidia.com/compute/cuda/12.9.1/local_installers/cuda-repo-ubuntu2404-12-9-local_12.9.1-575.57.08-1_amd64.deb
+sudo dpkg -i cuda-repo-ubuntu2404-12-9-local_12.9.1-575.57.08-1_amd64.deb
+sudo cp /var/cuda-repo-ubuntu2404-12-9-local/cuda-*-keyring.gpg /usr/share/keyrings/
+sudo apt-get update
+sudo apt-get -y install cuda-toolkit-12-9
+```
+
+## Install cuDNN 9.16.0 for CUDA Toolkit 12
+cuDNN 9.16.0 有分2個版本，分別支援 CUDA 12 與 CUDA 13。安裝的時候要注意。
+### Installation
+```shell
+wget https://developer.download.nvidia.com/compute/cudnn/9.16.0/local_installers/cudnn-local-repo-ubuntu2404-9.16.0_1.0-1_amd64.deb
+sudo dpkg -i cudnn-local-repo-ubuntu2404-9.16.0_1.0-1_amd64.deb
+sudo cp /var/cudnn-local-repo-ubuntu2404-9.16.0/cudnn-*-keyring.gpg /usr/share/keyrings/
+sudo apt-get update
+```
+
+### To install for CUDA 12
+```shell
+sudo apt-get -y install cudnn9-cuda-12
+```
+
+### To install for CUDA 13
+```shell
+sudo apt-get -y install cudnn9-cuda-13
+```
+
+## Remove local repo
 移除本地的 deb package
 1. 先找出安裝的 package name
 	```
@@ -92,6 +125,10 @@ description:
 		```
 	3. 移除：`sudo apt remove cuda-tools-12-9`
 	4. 清除沒用的套件：`sudo apt autoremove`
+	5. 刪除 keyring (如果你不再需要 CUDA repo)：`sudo rm /usr/share/keyrings/cuda-*-keyring.gpg`
+
+
+
 # 有什麼想法？