update sources.list

README.txt

 OPENXG/OAI ENV install repo
 Created by wf
-JUST RUN install.sh
+1. apt update and upgrade
+sudo apt update
+sudo apt upgrade
+ 
+if there are errors, use local sources.list to replace then update and upgrade again.
+sudo mv /etc/apt/sources.list /etc/apt/sources.list.bak
+sudo cp ./sources.list /etc/apt/sources.list
+sudo apt update
+sudo apt upgrade
+
+
+if there are GPG errors, like "NO_PUBKEY 7EA0A9C3F273FCD8", run below command and then update and upgrade again.
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7EA0A9C3F273FCD8
+sudo apt update
+sudo apt upgrade
+
+2. install develop environment
+./install.sh
 

sources.list

+# deb cdrom:[Ubuntu 18.04.4 LTS _Bionic Beaver_ - Release amd64 (20200203.1)]/ bionic main restricted
+
+# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
+# newer versions of the distribution.
+deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic main restricted
+
+## Major bug fix updates produced after the final release of the
+## distribution.
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
+## team. Also, please note that software in universe WILL NOT receive any
+## review or updates from the Ubuntu security team.
+deb http://mirrors.aliyun.com/ubuntu/ bionic universe
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic universe
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates universe
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic-updates universe
+
+## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
+## team, and may not be under a free licence. Please satisfy yourself as to 
+## your rights to use the software. Also, please note that software in 
+## multiverse WILL NOT receive any review or updates from the Ubuntu
+## security team.
+deb http://mirrors.aliyun.com/ubuntu/ bionic multiverse
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic multiverse
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates multiverse
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
+
+## N.B. software from this repository may not have been tested as
+## extensively as that contained in the main release, although it includes
+## newer versions of some applications which may provide useful features.
+## Also, please note that software in backports WILL NOT receive any review
+## or updates from the Ubuntu security team.
+deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
+# deb-src http://cn.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
+
+## Uncomment the following two lines to add software from Canonical's
+## 'partner' repository.
+## This software is not part of Ubuntu, but is offered by Canonical and the
+## respective vendors as a service to Ubuntu users.
+# deb http://archive.canonical.com/ubuntu bionic partner
+# deb-src http://archive.canonical.com/ubuntu bionic partner
+
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted
+# deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security universe
+# deb-src http://security.ubuntu.com/ubuntu bionic-security universe
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security multiverse
+# deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse
+deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
+# deb-src [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable
+deb https://pkg.jenkins.io/debian-stable binary/