Hi,
Encountering the same issue, I can confirm it still persists in RC4.
However, digging a bit deeper with the error I found on dmesg: "x86/PAT:
bterm:260: map pfn expected mapping type uncached-minus for ..., got
write-combining", I found this workaround:
Disabling paravirtualization in virtualbox acceleration or switching it to legacy results in a properly booting installer.
Kind regards,
Erwin