Ubuntu Server install requires PAE

angch's picture
Posted Wed, 09/12/2009 - 12:29 by angch

Testing a plain ubuntu 8.04.3 install on VirtualBox. Got the error

This kernel requires the following features not present on the CPU:
0:6
Unable to boot - please use a kernel appropriate for your CPU

Turned out 0:6 is PAE, and the -server series of kernels for Ubuntu requires it, rather than making use of it if available.

Don't need to downgrade your kernel to -generic, just turn on PAE in your machine or virtual machine. In the case of VirtualBox: