安装ubutu linux出错，罕见的错误

jacksgq

第一个步骤结束后，自动重启，然后是解压，大概10分钟后，出现如下提示信息：
   There was a problem in installing the stiected software.
    One or more packages failed to install.This may be due to bugs in the packages,or you be out of disk space or experiencing some other problem.
    Simply trying to instay those packages (or a slightly different set of packages) again may work around the problem,or at least more the installation process along a little further.You will new enter aptitude,a package management fronted,which will give you the apporitunity to do this.
     If you decide not to try again,bear in mind that some packages on your system will be in a broken state until you manually resolve the problem.

我不太会用aptitude，虽然看了它的帮助，但是还是没有搞明白它的用法。请帮助我。