每次我尝试更新(使用sudo apt-get update)我的Ubuntu时,我都会遇到以下问题:
W: The repository 'cdrom://Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1) xenial Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N:
我刚刚设置了一个带有ubuntu:latest映像的Docker容器。这个图片是,根据/etc/lsb-release的Ubuntu14.04。现在,我想将容器中的系统升级到Ubuntu16.04。因此,我已经安装了update-manager-core包。但是,当我运行do-release-upgrade时,我只收到以下输出:
root@container:~# do-release-upgrade
Checking for a new Ubuntu release
No new release found
为什么现在这个不起作用?总有一天它会起作用吗?从Ubuntu版本14.04升级到1
我今天为安全补丁做了一个常规的Ubuntu系统更新(2018-02-21).mssql将不再启动或更新,在错误日志、systemctl和更新输出中都会出现以下故障:
Err:13 https://packages.microsoft.com/ubuntu/16.04/mssql-server xenial/main amd64 Packages
404 Not Found
问题:例行更新破坏了我的普通Ubuntu16LTS与mssql-服务器实例。在我看来没有其他明显的实质性信息等等..。
以下命令在Ubuntu 15.10上运行良好:
sudo apt-get build-dep emacs24
但是,在Ubuntu16.04上运行它时会出现以下错误:
Reading package lists... Done
E: You must put some 'source' URIs in your sources.list
在15.10所有行(大约10行)中,deb-src在/etc/apt/sources.list中没有注释,而在16.04中,相应的行被注释掉。例如,下面是我当前sources.list的4行代码:
## Major bug fix update
在Ubuntu15.10之前,可以使用apt安装Celestia (一种实时三维空间仿真):
sudo apt-get install celestia celestia-gnome celestia-common-nonfree
然而,在Ubuntu16.04中,包celestia似乎不再存在。(apt-cache show celestia返回N: Can't select versions from package 'celestia' as it is purely virtual。包celestia-common-nonfree确实存在,但它只是一组不符合DF
误差
我正试图在我的电脑上安装这些步骤桌面的完整版本。直到步骤1.4,一切都很好,确切地说,
sudo apt-get install ros-kinetic-desktop-full
这里给出了以下错误:
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been crea