Compiling realtime kernel

Hello
I have been trying to compile a 5.14.2 version kernel with real time capabilities.
After some problems it compiled but I cannot boot it. GRUB says that kernel does not support efi handover 
There is little info about this problem
On this page someone suggested to change settings in the menuconfig but I do not have these settings
stackoverflow.com/questions/40344484/can...ompiled-linux-kernel
It has been a very long time since I last compiled a realtime kernel. But this was never an issue
 

Sorry I found the settings. The kernel is up and running sorry for the false alarm

why do you want to compile a kernel?

if you are running a debian OS you can just install a RT kernel

sudo apt install linux-image-rt-amd64

or one of the alternative rt kernels.
packages.debian.org/search?keywords=linux-image-rt

Well I was under the impression that you need to build your self a RT kernel ... At least that how I used to do it a few years ago

No problem if you compile your own. I suppose you can target it towards your system rather than something generic.

Yeah first time with EFI can be a bit tricky to begin with.

Just a small question.
Is run in place working on jammy? so I don't waste time

Tady wrote:

Well I was under the impression that you need to build your self a RT kernel ... At least that how I used to do it a few years ago

That used to be the case. Brings back horrific memories...

Seems I'm doing something wrong. But python 3 is installed 

./configure --with-realtime=uspace 

checking for python build information... 
checking for python3.10... python3.10
checking for main in -lpython3.10... no
checking for main in -lpython3.10m... no
checking for python3.9... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.8... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.7... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.6... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.5... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.4... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.3... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.2... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.1... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python3.0... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.7... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.6... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.5... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.4... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.3... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.2... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python2.1... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
checking for python... (cached) python3.10
checking for main in -lpython3.10... (cached) no
checking for main in -lpython3.10m... (cached) no
  results of the Python check:
    Binary:      python3.10
    Library:     no
    Include Dir: no
checking for python3.10... /usr/bin/python3.10
checking for python3... (cached) /usr/bin/python3.10
checking for a version of Python >= '2.1.0'... yes
checking for a version of Python >='3.6'... no
configure: error: this package requires Python >='3.6'.
If you have it installed, but it isn't the default Python
interpreter in your system path, please pass the PYTHON_VERSION
variable to configure. See ``configure --help'' for reference.

It tells you what to do there. at the end.
This is the crap that chased me to Debian 10 Bullseye.  No more Python fights and no need to compile the kernel.

Actually, what OS are you running and what version of python3 do you have?

Master branch requires 3.7 or higher as used by Buster. Mint and others use an earlier version.

Bullseye uses 3.9