Cannot install 64-bit linux guest on 64-bit linux host

[Joshua Newman]

Just cleanly installed 3.0.6 r52128 on an OpenSuSE 11.1 x86_64 host. When attempting to install a new OpenSuSE 11.1 x86_64 guest, the installation stops with the "Cool Software but..." dialog telling me "This is a 32-bit computer. You cannot use 64-bit software on it.

Host details:

uname -a

Linux magellan 2.6.27.29-0.1-default #1 SMP 2009-08-15 17:53:59 +0200 x86_64 x86_64 x86_64 GNU/Linux

cat /proc/cpuinfo

processor : 0 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.00GHz stepping : 3 cpu MHz : 2992.566 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 3 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts nopl pni monitor ds_cpl est cid cx16 xtpr bogomips : 5985.13 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:

processor : 1 vendor_id : GenuineIntel cpu family : 15 model : 4 model name : Intel(R) Pentium(R) 4 CPU 3.00GHz stepping : 3 cpu MHz : 2992.566 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 1 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 3 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts nopl pni monitor ds_cpl est cid cx16 xtpr bogomips : 5985.28 clflush size : 64 cache_alignment : 128 address sizes : 36 bits physical, 48 bits virtual power management:

[Joshua Newman]

Configuration file

[Joshua Newman]

Log file

[Joshua Newman]

Note: The config file is named OpenSUSE 11.2 because that's what I was originally trying to install and received the same message. If you look at the log files, you'll see I switched to the 11.1 CD to verify it was not the unreleased software.

[Joshua Newman]

Verified similar issue occurs with Windows 7 RC x64 install CD. Pertinent info from the error screen: File: \windows\system32\boot\winload.exe Status; 0xc000035a Info: Attempting to load a 64-bit application, however this CPU is not compatible with 64-bit mode.

[Frank Mehnert]

I guess your host CPU is a Pentium D, is that right? There are variants around which have VT-x available and other variants which haven't this feature, see the ​Intel Processor finder. Unfortunately it isn't obvious from the CPUID which CPU you have. Try to enable VT-x in the BIOS. It might be necessary to upgrade your BIOS to enable that feature. VirtualBox supports 64-bit guests only if the host has VT-x or AMD-V available. If your CPU does not have VT-x there is no way to execute 64-bit guests, sorry.