我在工作中运行 Ubuntu 16.04,想要升级到 18.04。
$ uname -a
Linux superbock 4.15.0-34-generic #37~16.04.1-Ubuntu SMP Tue Aug 28 10:44:06 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
当我获得如下升级窗口时:
我点击了,Upgrade...
但什么也没发生。
我尝试使用命令行运行更新管理器
$ update-manager
当我点击时Update...
,控制台上显示
检查授权 com.ubuntu.release-upgrader.release-upgrade 时出错:GDBus.Error:org.freedesktop.DBus.Error.NoReply:消息接收者未回复即与消息总线断开连接
我也尝试使用以下do-release-upgrade
命令:
$ sudo apt update
$ sudo apt upgrade
$ sudo apt dist-upgrade
$ sudo apt-get autoremove
$ sudo apt install update-manager-core
$ sudo do-release-upgrade
我得到以下信息:
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1,258 kB]
Fetched 1,259 kB in 0s (0 B/s)
authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg'
gpg exited 1
Debug information:
gpg: Signature made Wed 29 Aug 2018 19:33:13 BST using RSA key ID C0B21F32
gpg: /tmp/ubuntu-release-upgrader-ahhadl1h/trustdb.gpg: trustdb created
gpg: BAD signature from "Ubuntu Archive Automatic Signing Key (2012) <[email protected]>"
Authentication failed
Authenticating the upgrade failed. There may be a problem with the network or with the server.
不知道发生了什么?有人能建议如何解决这个问题吗?