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
