Centos 7 (Update), why can't I login?

Question

linux

Hello.
Upgraded from Centos 6.7 minimal to 7
During the upgrade, I saw errors about the lack of the libpcre.so.0 library.
The update is over, the system has booted up, but I cannot log in to the system by any user. After entering the login / password, the console blinks for a split second and returns to its original state (offering to enter a log / pass).
I tried to go into the single mod - it comes in, I even managed to change the pass for the root, but to no avail.
I noticed that, for example, "grep" does not work, and everything swears at the same libpcre.so.0.

Answer 1

If it swears at libpcre.so.0., then it most likely needs to be installed. Take the package from here and install it with handles. pkgs.org/download/libpcre.so.0