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If IO-APIC is enabled (number of CPUs is 1), then booting the Windows 2000 installation CD seems to be impossible. The setup gets stuck at "Setup starts Windows 2000" (that's when the setup starts the NT kernel) and seems top be in an infinite loop (VirtualBox uses 100% of 1 CPU on the host).

Is this a known bug?

No idea but I've never needed ioapic for w2k.

I already filled a bug report on this. http://www.virtualbox.org/ticket/4348

You need I/O-APIC for SMP.

Is this a 64 bit machine? Are you sure that VT-x/AMD-v is turned on in bios?

Same problem using an Ubuntu 9.04 x64 (Intel Core i7) host. Windows 2000 will boot with IO-APIC enabled only if ths OS doesn't actually use the IO-APIC (e.g., IO-APIC disabled during initial install and then activated later).

Perryg wrote:Is this a 64 bit machine? Are you sure that VT-x/AMD-v is turned on in bios?

Yes, the VT-x/AMD-v Icon is among the other icons.
The host is a 64-Bit Linux.

skoehler wrote:

Perryg wrote:Is this a 64 bit machine? Are you sure that VT-x/AMD-v is turned on in bios?

Yes, the VT-x/AMD-v Icon is among the other icons.
The host is a 64-Bit Linux.

Right but did you look in the bios yourself and verify that the hardware-v is turned on?
You may also need to upgrade your bios as others have had to do.
Also is the VT-x/AMD-v icon grayed out with a check mark in it? If so that means that it is not available.

Perryg wrote:Also is the VT-x/AMD-v icon grayed out with a check mark in it? If so that means that it is not available.

No, and if I move the mouse over the icon, I get a tooltip that says: "VT-x/AMD-v: active".
It is enabled in the BIOS. I didn't look for a new BIOS update, but can a new BIOS change the way VT-x works? Because the enable/disable option is already there.

The same is true on my system. VT-x works without any Problem in other VMs in VBox and other VM-Software. It is neither unavailable nor deactivated anywhere. (And yes I also reviewed the BIOS-settings)

Why are you are focusing on Hardware Virtualization anyway? The error appears with VT-x enabled and with VT-x disabled, which I guess makes it unrelated.

fuUser wrote:The same is true on my system. VT-x works without any Problem in other VMs in VBox and other VM-Software. It is neither unavailable nor deactivated anywhere. (And yes I also reviewed the BIOS-settings)

Why are you are focusing on Hardware Virtualization anyway? The error appears with VT-x enabled and with VT-x disabled, which I guess makes it unrelated.

Because I need the information to see what the problem might be. I do not have these problems and I am trying to find the reason why you and others are.

If you can please try to post your VBox log after you have this failure so we can look at it. Also remember to use the code block because these can be very long.

My log is attached to the bug report I filed (see post above)...

fuUser wrote:My log is attached to the bug report I filed (see post above)...

I just attached my logfiles to that bug as well.

After clone system (Windows 2000 SP4 Ru + All Hotfix) from Acronis tib to
VirtualBox.
System is hangUp at boot:
MergeIDE and rename driver to ___agp440.sys____ not resolve problem




And system hangup

PS
HostSystem - Windows XP SP3

In VmWare theese clone working nice