| 导读 | 最近我开始学习深度学习框架Tensorflow，一开始在Windows平台下的anaconda下安装，由于anaconda安装几次后navigator打开老是出现闪退的问题，所以决定换个Ubuntu下继续折腾tensorflow。本人笔记本没有NVIDIA显卡，只装的CPU版本的。而且是在虚拟机下的，下面开始吧。 |
先安装好Ubuntu 18.04版本的系统（最好是Ubuntu的14.04版本以上），Ubuntu系统已经有了了Python 3.7.7.7，所以不需要再安装Python了。
一、首先更新源为阿里云软件源，增加下载速度
（1）备份当前也就是默认官方的源列表
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup
（2）删除sources.list文件中的列表，删除全部内容
sudo gedit /etc/apt/sources.list1
（3）替换内容后，保存
deb //mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src //mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb //mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src //mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb //mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src //mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb //mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src //mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb //mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src //mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse
（4）更新源列表
sudo apt-get update
参考：
二、安装Tensorflow（Python3.6.7/CPU）
（1）安装Python3的包管理pip
sudo apt-get install python3-pip python3-dev
（2）安装tensorflow
（自动安装相关库numpy、tensorboard、six、protobuf、html5lib、bleach、werkzeug、markdown）
linuxidc@linuxidc:~/linuxidc.com$ sudo pip3 install tensorflow
（3）测试tensorflow
linuxidc@linuxidc:~/linuxidc.com$ python3 Python 3.6.7 (default, Oct 22 2018, 11:32:17) [GCC 8.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import tensorflow as tf >>> a = tf.constant(1) >>> b = tf.constant(2) >>> op = a + b >>> sess = tf.Session() 2019-06-02 06:35:29.407386: I tensorflow/core/platform/cpu_feature_guard.cc:141] Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA 2019-06-02 06:35:29.427402: I tensorflow/core/platform/profile_utils/cpu_utils.cc:94] CPU Frequency: 1799995000 Hz 2019-06-02 06:35:29.427627: I tensorflow/compiler/xla/service/service.cc:150] XLA service 0x24f1710 executing computations on platform Host. Devices: 2019-06-02 06:35:29.427675: I tensorflow/compiler/xla/service/service.cc:158] StreamExecutor device (0): <undefined>, <undefined> >>> sess.run(op) 3 >>> sess.close() >>>
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