我需要一些帮助。我的备份不起作用。我检查了我的设置,它说bup
我的电脑上没有安装。
更新
当我尝试在命令行上安装bup
程序包时,收到一条错误消息:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package bup is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'bup' has no installation candidate
另外,我还尝试了 aptitude 命令: