我尝试升级到 14.04 但出现了这样的情况,不知道下一步该怎么做。
ruedi@ruedi-XPS-One-2710:~$ sudo do-release-upgrade -d
Checking for a new Ubuntu release
Err Upgrade tool signature
Connection failed
Get:1 Upgrade tool [4,403 kB]
Fetched 4,403 kB in 6s (493 kB/s)
WARNING:root:file 'trusty.tar.gz.gpg' missing
Failed to fetch
Fetching the upgrade failed. There may be a network problem.
ruedi@ruedi-XPS-One-2710:~$
有人可以帮我吗?
答案1
这可能与此重复问题。尝试那里发布的相同解决方案!或者您可以直接下载媒体并从安装菜单中选择更新当前版本