Sid installation fails - No kernel modules found

[Piscium <groknok@gmail.com>]

Hiya,

I tried to install Sid (on a VirtualBox VM) following the instructions
in [1], section "Use the Unstable "mini.iso" image.". I downloaded the
specified ISO, did the sha256 check, proceeded with all the various
options without any error, network configuration also succeeded, then
at the step "Download installer components" I got the error "No kernel
modules found". The mirror is the default and recommended [2].

Any ideas? Could it be that the specified ISO got somehow out of sync
with what is available in the default mirror?

[1] https://wiki.debian.org/DebianUnstable
[2] deb.debian.org