Everytime when I reboot nano, the ubuntu system clock is back reset to year 2018 which is quite annoying. When i tried to use hwclock to set, it was failed:
rui@rui-desktop:~$ hwclock -w hwclock: Cannot access the Hardware Clock via any known method. hwclock: Use the --debug option to see the details of our search for an access method.
How to set system clock permanently?