没有软件中心的权限
我今天刚刚安装了Ubuntu 13.04（从11.04开始）。 我无法使用Dash中的软件中心。 当我从破折号启动它时，它总是说我没有足够的权限来安装软件。 但我的用户是sudo adm和lpadmin组，应该如此。 我可以使用它的唯一方法是：在控制台中使用“sudo software-center”。 为什么不像往常一样只问我的密码？ 这是什么问题？
如果您错误地在/usr/share/polkit-1/actions/org.debian.apt.policy文件中有类似内容：
... Install or remove packages To install or remove software, you need to authenticate. no no no ...
当您尝试从Ubuntu软件中心安装某些内容时，您将收到以下警告：
您还可以查看警告中的详细信息。
所以，检查/usr/share/polkit-1/actions/org.debian.apt.policy文件，确保看起来像这样：
Apt Daemon http://launchpad.net/aptdaemon/ package-x-generic List keys of trusted vendors To view the list of trusted keys, you need to authenticate. auth_admin auth_admin auth_admin_keep Remove downloaded package files To clean downloaded package files, you need to authenticate. auth_admin auth_admin yes Change software configuration To change software settings, you need to authenticate. auth_admin auth_admin auth_admin_keep Change software repository To change software repository settings, you need to authenticate. auth_admin auth_admin auth_admin_keep Install package file To install this package, you need to authenticate. auth_admin auth_admin auth_admin_keep Update package information To update the software catalog, you need to authenticate. auth_admin auth_admin yes Install or remove packages To install or remove software, you need to authenticate. auth_admin auth_admin auth_admin_keep Install software from a high-trust whitelisted repository. To install software, you need to authenticate. auth_admin auth_admin auth_admin_keep Add a new repository and install packages from it To install software from a new source, you need to authenticate. auth_admin auth_admin auth_admin_keep Add a new repository of purchased software and install packages from it To install purchased software, you need to authenticate. auth_admin auth_admin auth_admin_keep Upgrade packages To install updated software, you need to authenticate. auth_admin auth_admin auth_admin_keep Cancel the task of another user To cancel someone else's software changes, you need to authenticate. auth_admin auth_admin auth_admin Set a proxy for software downloads To use a proxy server for downloading software, you need to authenticate. auth_admin auth_admin auth_admin
要编辑它，请切换到终端中的root用户：
sudo -i
然后运行以下命令：
gedit /usr/share/polkit-1/actions/org.debian.apt.policy
并使用CTRL D或键入exit关闭该根会话。