35+ stories, thoughts and ideas.Ubuntu 22.04.1 LTS版本已经发布，手里有一批20.04版本的机器需要升级。
升级方法
- 检查必需的软件包
lspci命令为ubuntu升级必需软件包。
sudo apt install -y pciutils- 升级到当前OS最新版本
sudo apt update
sudo apt upgrade -y 部分机器可能需要重启
- 无交互升级到 ubuntu 22
机器多的时候，使用命令sudo do-release-upgrade -f DistUpgradeViewNonInteractive 无交互升级。
如果遇到下面情况，提示extracting 'jammy.tar.gz'后直接退出，升级过程出错了，需要手动执行sudo do-release-upgrade 观察日志，解决出错的问题。
$ sudo do-release-upgrade -f DistUpgradeViewNonInteractive
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [819 B]
Get:2 Upgrade tool [1267 kB]
Fetched 1268 kB in 0s (0 B/s)
authenticate 'jammy.tar.gz' against 'jammy.tar.gz.gpg'
extracting 'jammy.tar.gz'
$升级完成会自动推出，需要仔细观察输出日志，判断是否有出错.
正常的退出：
No schema files found: removed existing output file.
(Reading database ... 106687 files and directories currently installed.)
Purging configuration files for session-migration (0.3.6) ...
Purging configuration files for libpython3.8-minimal:amd64 (3.8.10-0ubuntu1~20.04.5) ...
Purging configuration files for at (3.2.5-1ubuntu1) ...
Purging configuration files for libssl1.1:amd64 (1.1.1f-1ubuntu2.16) ...
Purging configuration files for popularity-contest (1.71ubuntu3) ...
Purging configuration files for ltrace (0.7.3-6.1ubuntu6) ...
Purging configuration files for bsdmainutils (12.1.7+nmu3ubuntu2) ...
Purging configuration files for python3.8-minimal (3.8.10-0ubuntu1~20.04.5) ...
Purging configuration files for language-selector-common (0.219) ...
Purging configuration files for crda (3.18-1build1) ...
Purging configuration files for accountsservice (22.07.5-2ubuntu1.3) ...
Processing triggers for dbus (1.12.20-2ubuntu4) ...
$ 异常退出，根据提示，是nginx升级过程出错了，但是不是致命错误，升级最后还是成功了。对于有异常的升级，可能还需要使用 sudo apt autoremove --purge -y 删除无用的软件包。
invoke-rc.d: release upgrade in progress, error is not fatal
Setting up nginx (1.18.0-6ubuntu14.1) ...
$ sudo apt autoremove --purge -y- 重启生效，检查升级后是否正常。