Virtualbox install Linux unable to boot 2017-02-12 01:31
After creating virtual machine I want to install CentOS6 (32bit). I got the error message like following.
This kernel requires the following features not present on the CPU:
pae
Unable to boot - please use a kernel appropriate for your CPU.
This message means you CPU (virtual) does not support PAE. About PAE you can click here for more detail. Put simply, 32 bit system can't use more than 4G of memory address space without PAE.
Solution
Enable PAE: go "Settings" -> "System" -> "Processor" and enable "PAE/NX".