[Assist] Unable to boot my parabola "error while loading shared libraries libjson-c.so.4"

[Xavier B.]

After upgrading my system, I'm not be able to boot my system (see 
photo). It seems it's an issue with systemd. What can I do? After this 
shot, the keyboard does not respond.

Any hints? Could I boot with USB-arch booting and reinstal·l some 
packages? How?

Thanks in advance,

PS: Yeah, I used --ignore in pacman -Syu but systemd should not be updated if it could not.



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