1. fonts-unfonts-core 설치 $ sudo apt install fonts-unfonts-core user@raspberrypi:~ $ sudo apt install fonts-unfonts-core Reading package lists... Done Building dependency tree... Done Reading state information... Done The following NEW packages will be installed: fonts-unfonts-core 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 14.9 MB of archives. After this operation..