Это ошибка в нескольких служебных файлах Debian:
# systemctl enable watchdog
Synchronizing state of watchdog.service with SysV init with /lib/systemd/systemd-sysv-install...
Executing /lib/systemd/systemd-sysv-install enable watchdog
# find /etc/systemd/ | grep watch
# tail -n2 /lib/systemd/system/watchdog.service
[Install]
https://www.raspberrypi.org/forums/viewtopic.php?f=82&t=218609&p=1406567#p1406567https://forum.armbian.com/topic/9115-still-dont-know-where-to-report-bugs-watchdogservice-refuses-to-start-due-to-broken-service-file/
Исправление уровня распространения:
echo "WantedBy=default.target" >> /lib/systemd/system/watchdog.service
systemctl daemon-reexec
systemctl enable watchdog
systemctl stop watchdog.service
systemctl start watchdog.service
Существует множество ручных альтернатив этому.
@Hermann нашел решение. grub-efi-amd64-bin
не конфликтует с другими пакетами:
aptitude install grub-efi-amd64-bin The following NEW packages will be installed: grub-efi-amd64-bin grub-efi-amd64-signed{a} 0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 1173 kB of archives. After unpacking 12.1 MB will be used. Do you want to continue? [Y/n/?] -- ciach grub-instal -v /dev/sda grub-install: info: executing modprobe efivars 2>/dev/null. grub-install: info: Looking for /sys/firmware/efi... grub-install: info:...found. Installing for x86_64-efi platform. -- ciach
и теперь LUbuntu прекрасно загружается в режиме EFI.