virtualbox.org

Hi,

I tried to create a VM with Ubuntu but I'm getting this error: "This kernel requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot - please use a kernel appropriate for your CPU", so I upload the 32 bits iso image, but I get the same error. I tried this solution: http://askubuntu.com/questions/128657/k ... -i-install but I can't find the option Virtualization Technology. Any idea about this, please? Thanks a lot!

you need to enable VT-x/AMd-V in the BIOS of your PC if available.

You obviously can't get the "this is an x64 kernel" from a 32 bit kernel, so the part about you trying a 32bit image must be mistaken.

The message is what you get if you choose a 32bit Linux VM template in VirtualBox and then try to install a 64bit Linux OS inside the VM. Most commonly this mistake will be made when no 64bit options are offered, which means that you need to follow the steps of the FAQ: I have a 64bit host, but can't install 64bit guests.

Thanks a lot, I found that option in Security-> System Security and I enabled it, so now the Ubuntu (64 bits) options appears and it works!