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无法从 12.04LTS 升级到 14.04LTS

tag-icon • tag-icon 12.04 upgrade
无法从 12.04LTS 升级到 14.04LTS

我正在尝试升级到 14.04.1 LTS。它显示：

You have to download a total of 137 k. This download will take about 
4 seconds with your connection. 

Installing the upgrade can take several hours. Once the download has 
finished, the process cannot be canceled. 

Continue [yN]  Details [d]d
Continue [yN]  Details [d]y

Fetched 0 B in 0s (0 B/s)                                                                                                                    

Could not download the upgrades 

The upgrade has aborted. Please check your Internet connection or 
installation media and try again. All files downloaded so far have 
been kept. 

Failed to fetch 
http://archive.ubuntu.com/ubuntu/pool/main/g/gcc-defaults/libgcj-common_4.8.2-1ubuntu6_all.deb 
403 Forbidden 



Restoring original system state

Aborting...

答案1

首先，我认为最好禁用所有第三方存储库（如果有）。接下来，您必须使用以下命令更新系统：

sudo apt-get update && sudo apt-get upgrade && sudo apt-get dist-upgrade

然后，您必须通过终端运行更新管理器来升级到 14.04。打开终端并输入以下内容：

更新管理器-d

您已准备好将发行版升级到 14.04...!!!

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