问题描述
我已经安装了Ubuntu 17.04，并且想将其升级到18.04。当我尝试做时：
sudo do-release-upgrade
我收到一条消息，说An upgrade from 'zesty' to 'bionic' is not supported with this tool。需要输入以继续进行此操作。
sudo do-release-upgrade
Checking for a new Ubuntu release
Your Ubuntu release is not supported anymore.
For upgrade information, please visit:
http://www.ubuntu.com/releaseendoflife
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1,257 kB]
Fetched 1,258 kB in 0s (0 B/s)
authenticate 'bionic.tar.gz' against 'bionic.tar.gz.gpg'
extracting 'bionic.tar.gz'
Reading cache
Checking package manager
Can not upgrade
An upgrade from 'zesty' to 'bionic' is not supported with this tool.
最佳方案
这在任何地方都没有正确解释，这是您需要执行的操作(或我的操作方式)：
升级到17.04至17.10：Unable to upgrade from ubuntu 17.04 to 17.10
sudo cp /etc/apt/sources.list /etc/apt/sources.list.bak #to be safe
sudo sed -i -re 's/old-releases.ubuntu.com/archive.ubuntu.com/g' /etc/apt/sources.list
sudo sed -i -re 's/zesty/artful/g' /etc/apt/sources.list
sudo apt update
sudo apt dist-upgrade
sudo apt autoremove
(链接说使用智能来代替apt-get)
从17.10升级到18.04：EOLUpgrades
将/etc/apt/sources.list中的所有内容替换为：
## EOL upgrade sources.list
# Required
deb http://old-releases.ubuntu.com/ubuntu/ artful main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ artful-updates main restricted universe multiverse
deb http://old-releases.ubuntu.com/ubuntu/ artful-security main restricted universe multiverse
# Optional
#deb http://old-releases.ubuntu.com/ubuntu/ artful-backports main restricted universe multiverse
然后运行升级：
apt-get update
apt-get dist-upgrade
do-release-upgrade
按照要求执行操作，等待操作完成，您应该完成操作。