" this kernel required an X86-64 CPU, but only detected a i686 CPU"
25756
Cannot install Ubuntu in VirtualBox due to "this kernel requires an x86-64 CPU, but only detects an i686 CPU, unable to boot" error
143645
How to fix "*:i386 cannot be configured because *:amd64 is in a different version"?
52775
Why can't a 64 bit OS run a 16 bit application?
151531
How to find out if my system is i386 or x86_64 before installing Ubuntu?
64548
Custom kernel: fails to load firmware when module built-in
60576
Intel® Core™2 Duo Processor E4300 - Is it a 64 Bit Processor?
101610
How do I find out the kernel version I am running?
8945
Couldn't find hvm kernel for Ubuntu tree
141567
How can I determine whether my processor is 32-bit or 64-bit?
7045
Why do I get "Required key not available" when install 3rd party kernel modules or after a kernel upgrade?
10735
Compile 32bit kernel on 64bit machine
155729
kernel_task is using 90% CPU, what could be the cause?
47989
Ubuntu 14.04 LTS fails to start with a kernel panic
10794
How do I get the kernel source code?
55550
Why does the i386 version of software get installed on an x86_64 system?
111726
Old kernel with Ubuntu 16.04.2 update
72015
How to check whether my Intel-based Mac is 32-bit or 64-bit