Install console-cyrillic by entering the following commands in the terminal:
sudo apt update sudo apt install console-cyrillic
Cyrillic fonts and keyboard layouts for Linux console
This package provides Cyrillic support on the Linux console with great number of customizations: . 1) Various supported encodings: utf-8, cp1251, ibm866, iso-8859-5, koi8-r, koi8-u, mac-cyrillic, mik, pt154 and rk1048. . 2) Belarusian, two Bulgarian, two Kazakh, Macedonian, Mongolian, two Russian, Serbian and two Ukrainian keyboard mappings. . 3) Many screen fonts. . 4) Utilities: cyr, displayfont, dumppsf, makeacm, mkvgafont, raw2psf. . 5) Two fonts for Dosemu.