Installing security updates

Question

When logging in, I get the following messages:
Updates Information Summary: available
    8 Security notice(s)
        7 Important Security notice(s)
        1 Medium Security notice(s)
Security: kernel-6.1.79-99.164.amzn2023.x86_64 is an installed security update
Security: kernel-6.1.61-85.141.amzn2023.x86_64 is the currently running version

But when I try to upgrade:
sudo dnf upgrade
Last metadata expiration check: 0:08:19 ago on Tue Apr  9 14:04:11 2024.
Dependencies resolved.
Nothing to do.
Complete!

I have rebooted, and name -a still shows:
Linux xxxxxxxx.com 6.1.61-85.141.amzn2023.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Nov  8 00:39:18 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

So, how do I switch to the latest installed security update?

Thanks

Answer

You may need to switch between versioned repository as per [Deterministic upgrades through versioned repositories usage](https://docs.aws.amazon.com/linux/al2023/ug/deterministic-upgrades-usage.html)

To check your current version
```
rpm -q system-release
```
On my AL2023, output is `system-release-2023.4.20240401-0.amzn2023.noarch`

Run `sudo dnf check-release-update` to check for newer releases

To upgrade to the latest
```
sudo dnf upgrade --releasever=latest
```

kernel-6.1.79-99.164 is in [version 2023.3.20240304](https://docs.aws.amazon.com/linux/al2023/release-notes/relnotes-2023.3.20240304.html)
```
sudo dnf upgrade --releasever=2023.3.20240304
```

Installing security updates

Relevant content