Yesterday I faced problem with VMware server that it can not run 64-bit guest
system. I'm using 64-bit SUSE and 64-bit VMware, so it should work, right? I
can select 64-bit system in VMware, but the guest is simply 32-bit without any
error.
In documentation, man can find only "VMware Server supports 64-bit guest
operating systems only on host machines with supported processors.". How
helpful! After a bit of googling, it turns out that VT needs to be enabled and
usually it is not enabled in BIOS (any reason for this?).
So let's reboot, go to BIOS, enable VT and it should work. Unfortunately not,
after reboot, still same problem. I was almost given up at this point, but I
decided to recheck BIOS, whether I really enabled the right thing. Yes I did,
but I did not notice small note, that to apply this setting, I need to power
off and on the computer. That was the trick! Now it finally works. I just
wonder why it has to be so complicated...