I've got a machine here that was happily running Linux + VMware Server, both 32 and 64bit guests. I previously had ESXi 3.5u4 on it, but the onboard NIC was trouble.
I installed ESXi 4.0 and the SATA required no hackery, and the NIC worked, and I was ecstatic.
Then I tried adding my VMs back to it via Converter. "Host doesn't support 64 bit guests".
I figured that had to be a goof, some problem with Converter.
Set up a new Vista64 guest from scratch, began install, crash "Your computer does not support 64 bit mode". WTF?
HP dc5800 with a Core 2 Quad Q6600. Has VT.
Why would it not be able to run 64bit guests under ESXi 4.0? It ran them under 3.5u4 and under Server 2.0 + Linux host.
Be sure that Virtualization (or VT) is enabled in BIOS.
Check also in HCL to see if your system is compliant:
Andre
**if you found this or any other answer useful please consider allocating points for helpful or correct answers
Be sure that Virtualization (or VT) is enabled in BIOS.
Check also in HCL to see if your system is compliant:
Andre
**if you found this or any other answer useful please consider allocating points for helpful or correct answers
See . This document is mainly aimed at hosted products, but you can use the ISO image to verify that VT-x is locked and enabled at boot. When you were using VMware Server, did you use the 'hv.enableIfUnlocked' setting to work around a BIOS bug? ESX does not recognize that configuration option.
Now I feel dense. I forgot that I updated my system BIOS about a week or so ago. I'm guessing I hadn't run any 64bit VMs in the meantime, and the x64 autostarts were failing silently. Re-enabled VT-x in BIOS and it's working correctly now. Thanks.
You're welcome.
Andre