CentOS

First you seem to have set this up in two separate and mutually incompatible ways. Either pick xinetd to start a connection OR run tftpd as a service all the time. Not both. I'd recommend dumping the xinetd bit and disabling that and concentrating on getting it running as a service first. After it w...

It's still the same as it ever was, a single person does the updates and releases them. Sometimes they are easy to rebuild, sometimes they are more difficult and it takes longer. They're still being built and released.

In the absense of any other suggestions, you could try removing the USB trackpad that libvirt sets up automatically on windows systems and use a plain old USB mouse instead. This is a setting in the VM xml, not the physical device.

Have you installed the proprietary nvidia or AMD graphics drivers?

Why are you using a CentOS 6 yum repo on CentOS 8. Don't. They are not compatible. Disable it or remove it.

I haven't looked at your files but in situations like this it is possible you're hitting denials that are also 'dontaudit' rules. So what I think you should do is uninstall your existing selinux policy run `service auditd rotate` to rotate your audit log files, maybe delete or move the /var/log/audi...

Boot from rescue media and run xfs_repair from there.

Obligatory Google Translate:

Good, my English is not very good.
I have this problem, by repairing with XFS_repair /Dev /Sda1, it is ok, but you persist the problem, which could do the most to advance in that error.
Greetings

Both rufus and I think balena are known to have problems with the hybrid isos that CentOS uses. Check teh link in my sig to the wiki article about what utilites are safe to use.

If you have no backup then you have most liklely lost those fles. If you want to attempt to recover them then you should STOP using the system immediately and shut it down. Now find some recovery media - perhaps systemcrescuecd - that includes a utility called photorec. This can attempt to recover d...