Ticket #2061 (closed defect: duplicate)
64-bit guest OS doesn't work
|Reported by:||przemoc||Owned by:|
I have 64-bit CPU (AMD Athlon 64 X2), Virtualization support turned on in BIOS (in KN9 that is: Advanced BIOS Features->CPU Feature->Virtualization: Enabled), 64-bit host OS (XP64 with SP1), VirtualBox 2.0 64-bit, Enable AMD-V/VT-x checked along with recommended IO APIC.
First I tried to start existing 64-bit ubuntu 8.04 from physical drive via vmdk. After "Starting up..." I got:
This kernel requires an x86-64 CPU, but only detected an i586 CPU. Unable to boot - please use a kernel appropriate for your CPU.
Next I tried to boot from 64-bit ubuntu 7.10 cd and start installation, but when I've chosen option to install it showed me message:
Your CPU does not support long mode. Use a 32bit distribution.
I'm not sure yet that problem occurs only in xp64 host and only with ubuntu64 guest, so I didn't change host and guest types.