Hi,
We are going to setup autopkgtest env for riscv64. But got errors from the cmd:
```
...
zh_CN.UTF-8... done
zh_CN.UTF-8... done
Generation complete.
update-rc.d: error: cannot find a LSB script for checkroot.sh
update-rc.d: error: cannot find a LSB script for umountfs
Failed to disable unit, unit hwclock.sh.service does not exist.
update-rc.d: error: cannot find a LSB script for hwclockfirst.sh
Creating SSH2 RSA key; this may take some time ...
3072 SHA256:T6v16crYCSTYPtG0unM2mq/XwS53YGoF8KwnGeeQ4fc root@MiWiFi-R4A-srv (RSA)
Creating SSH2 ECDSA key; this may take some time ...
256 SHA256:JttXQHYFT9AxHvhcxKuAhZ4rmfBiaZhErWHpPyM/8/Q root@MiWiFi-R4A-srv (ECDSA)
Creating SSH2 ED25519 key; this may take some time ...
256 SHA256:pxc+ezfNbLvPnTh218SyqjGIPTLNdPWgTn5zZXHrDqg root@MiWiFi-R4A-srv (ED25519)
invoke-rc.d: could not determine current runlevel
invoke-rc.d: policy-rc.d denied execution of restart.
Current default time zone: 'Etc/UTC'
Local time is now: Wed Apr 6 02:59:27 UTC 2022.
Universal Time is now: Wed Apr 6 02:59:27 UTC 2022.
Running setup script /usr/share/autopkgtest/setup-commands/setup-testbed...
Unknown architecture, assuming PC-style ttyS0