error installing busybox on target system. Check /var/log/syslog or virtual console number 4 for details

Linux-RISC <[email protected]> Sun, 14 Aug 2022 09:14:06 +0200

Newsgroups	gmane.linux.debian.ports.alpha
Message-ID	<CAJVkpuOmpvrXjb6Bp7=9gZv72iPDpdNjd1Yrf6JEk98WjSSHXw@mail.gmail.com>

I am trying to install Debian 5.0.10 on an AlphaServer DS10. It worked in
the past but now during installation it returns "error installing busybox
on target system. Check /var/log/syslog or virtual console number 4 for
details".
Virtual console number 4 displays: "WARNING: the following packages cannot
be authenticated: busybox. There are problems and -y was used without
--force-yes"

And installation gets stuck there.