Reboot is just a reboot

In the article I want to restart CentOS8 on time every day, I created an environment to restart CentOS8 every day.

But I noticed one thing. ** Oh, this kid has only restarted ... ** That's right. .. It can be troublesome if the package is automatically updated by restarting. .. (Due to dependencies or religious reasons ** I didn't dare to update the package **, but it collapses)

So I decided to include the package update script in my daily reboot.

First check what kind of updates are coming

Below.

`python`


dnf check-update

It looks like this. Something is coming.

So you can use the dnf command to control things around package updates.

Gorilla update

What is Gorilla Update? ** Update everything that's coming because it doesn't matter! I'll do something about the rest! ** ** It is a powerful update method allowed only for the strong man.

`Gorilla update command`


dnf upgrade -y --allowerasing

Normally, you specify the package name after `` `upgrade```, but you can target ** all packages ** by not writing it.
By adding the option -y, "Can I execute it?" 』Skip the step of confirmation.
By adding the option --allowerasing, I am telling CentOS8 that I am prepared to remove the installed packages to resolve the dependency. (Without this, when it becomes necessary to resolve the dependency, an error like "What should I do with this?" Will occur and the update will not run.)

Orangutan update

What is an orangutan update? ** Only security and important updates are automatically updated for the time being! Other than that, "Hey, wait! Do not update with ** It is a wise update method.

`Orangutan update command`


dnf upgrade-minimal -y --security

By adding upgrade-minimal, ** only important updates ** are limited.
By adding --security, only the packages that require security update are narrowed down.
Since `` `--allowerasing``` is not added, the update will not run if dependency resolution is required.

Serpentine

If it is a home server or a development server, I think that the following usages should be balanced.

Security and important things are updated automatically.
Other than the above, write out the updated contents in text or notify by e-mail etc. and consider individually whether to update.

Reference site

https://qiita.com/yasushi-jp/items/0dc7f413632927f92286 https://www.atmarkit.co.jp/ait/articles/2001/09/news018.html https://www.atmarkit.co.jp/ait/articles/2002/06/news010.html https://blog.luispc.com/entry/2019/12/05/214513

version

CentOS Linux release 8.3.2011

[LINUX] CentOS8, please update the gorilla before the daily reboot (dnf command)