Ubuntu 16.04 – sudo apt-get update错误
$ sudo apt-get update Hit:1 http://ppa.launchpad.net/ravefinity-project/ppa/ubuntu xenial InRelease Hit:2 http://ppa.launchpad.net/snwh/pulp/ubuntu xenial InRelease Reading package lists... Done $ 首先，您需要编辑或创建/etc/apt/sources.list文件，因此请运行以下命令：
sudo nano /etc/apt/sources.list
现在，将以下内容复制并粘贴到终端中：
# deb cdrom:[Ubuntu-Studio 16.04 LTS _Xenial Xerus_ - Alpha amd64 (20151225)]/ xenial main multiverse restricted universe # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu/ xenial main restricted deb-src http://archive.ubuntu.com/ubuntu/ xenial main restricted ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu/ xenial-updates main restricted deb-src http://archive.ubuntu.com/ubuntu/ xenial-updates main restricted ## NB 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 ## universe WILL NOT receive any review or updates from the Ubuntu security ## team. deb http://archive.ubuntu.com/ubuntu/ xenial universe deb-src http://archive.ubuntu.com/ubuntu/ xenial universe deb http://archive.ubuntu.com/ubuntu/ xenial-updates universe deb-src http://archive.ubuntu.com/ubuntu/ xenial-updates universe ## NB 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://archive.ubuntu.com/ubuntu/ xenial multiverse deb-src http://archive.ubuntu.com/ubuntu/ xenial multiverse deb http://archive.ubuntu.com/ubuntu/ xenial-updates multiverse deb-src http://archive.ubuntu.com/ubuntu/ xenial-updates multiverse ## NB 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://archive.ubuntu.com/ubuntu/ xenial-backports main restricted universe multiverse deb-src http://archive.ubuntu.com/ubuntu/ xenial-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 xenial partner deb-src http://archive.canonical.com/ubuntu xenial partner deb http://security.ubuntu.com/ubuntu xenial-security main restricted deb-src http://security.ubuntu.com/ubuntu xenial-security main restricted deb http://security.ubuntu.com/ubuntu xenial-security universe deb-src http://security.ubuntu.com/ubuntu xenial-security universe deb http://security.ubuntu.com/ubuntu xenial-security multiverse deb-src http://security.ubuntu.com/ubuntu xenial-security multiverse
按CTRL + o ，然后按ENTER以保存文件。 按CTRL + x退出nano。
完成后，运行以下命令：
sudo apt-get update
要应用任何更新，请运行以下命令之一：
sudo apt-get upgrade
要么
sudo apt-get dist-upgrade