1.
cat /etc/systemd/system/multi-user.target.wants/console-setup.service
[Unit]
Description=Set console font and keymap
DefaultDependencies=no
After=console-screen.service kbd.service local-fs.target
RequiresMountsFor=/usr
ConditionPathExists=/bin/setupcon
[Service]
Type=oneshot
ExecStart=/lib/console-setup/console-setup.sh
RemainAfterExit=yes
[Install]
WantedBy=multi-user.target
Изменить
ExecStart=/lib/console-setup/console-setup.sh
на
ExecStart=/bin/setupcon
2.
Еще одно «решение»:
cat /etc/udev/rules.d/90-setupcon.rules
ACTION=="add", SUBSYSTEM=="vtconsole", KERNEL=="vtcon*", RUN+="/bin/setupcon"
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=759657