Comment 5 for bug 1888543

Verified on Groovy with 1:1.30.1-4ubuntu9.1:

ubuntu@gg:~$ dpkg -l busybox-static | cat
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-==============-=================-============-======================================================
ii busybox-static 1:1.30.1-4ubuntu9 amd64 Standalone rescue shell with tons of builtin utilities
ubuntu@gg:~$ sudo busybox hwclock -s
hwclock: settimeofday: Invalid argument
ubuntu@gg:~$ sudo apt -qq install busybox-static
The following packages will be upgraded:
  busybox-static
1 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
Need to get 915 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 64660 files and directories currently installed.)
Preparing to unpack .../busybox-static_1%3a1.30.1-4ubuntu9.1_amd64.deb ...
Unpacking busybox-static (1:1.30.1-4ubuntu9.1) over (1:1.30.1-4ubuntu9) ...
Setting up busybox-static (1:1.30.1-4ubuntu9.1) ...
Processing triggers for man-db (2.9.3-2) ...
Processing triggers for initramfs-tools (0.137ubuntu12) ...
update-initramfs: Generating /boot/initrd.img-5.8.0-29-generic
ubuntu@gg:~$ sudo busybox hwclock -s
ubuntu@gg:~$