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Authentication Failure after force pacman -Syu

Yesterday I was trying to do an update but there were some conflicts, I don't remember which libraries. However, I forced the upgrade and now my system doesn't authenticate. That is, I use the root user and the correct password but I get "Wrong Password". When I try to log in via TTYs I get the same thing, i.e. when I enter root and the correct password, I get "Authentication Failure" but if I enter a wrong password for root I get "Incorrect Login". I really don't know what to do anymore, I'm right now in a Ubuntu chrooted to try to solve the problem but I don't know how to solve it. I leave some screenshots along with some logs that might be useful. Thanks a lot!

https://i.stack.imgur.com/wuUIL.jpg

https://i.stack.imgur.com/Ragak.jpg

https://i.stack.imgur.com/GhkTh.jpg

Command journalctl -xe
https://pastebin.com/3C9YG4fB

Command dmesg
https://pastebin.com/TyHN1yEN

pacman.conf
https://pastebin.com/iY8150H2

pacman mirrorlist
https://pastebin.com/VA4qM7ZX

Disable these. They are problematic.

Code:

[multilib-testing]

Include = /etc/pacman.d/mirrorlist



[archlinuxfr]

Server = http://repo.archlinux.fr/$arch

#Server = file:///home/custompkgs

SigLevel = Optional TrustAll

Quote:

However, I forced the upgrade and now my system doesn't authenticate.

What does this mean? You forced it how? Pacman has not had the --force switch for a good while now. How long since you updated?

Post your /var/log/pacman.log
Or at least the last part of it from where you updated.

Do you have an install .iso? Can you chroot in and fix your broken install?

Lets see the pacman.log

Quote:

Originally Posted by teckk (Post 6089987)

Disable these. They are problematic.

Code:

[multilib-testing]

Include = /etc/pacman.d/mirrorlist



[archlinuxfr]

Server = http://repo.archlinux.fr/$arch

#Server = file:///home/custompkgs

SigLevel = Optional TrustAll

The [archstrike] repo also looks problematic. Makes me think that OP maybe isn't running Archlinux proper there, i.e. they didn't install it from scratch and therefore don't really know their system and lack the skills to provide useful troubleshooting results.