How to compile kernel in ubuntu 20.04

root@ziomario-Z390-AORUS-PRO:/usr/src/linux-source-6.5.0/linux-source-6.5.0# make


CC [M] ubuntu/ubuntu-host/ubuntu-host.mod.o
LD [M] ubuntu/ubuntu-host/ubuntu-host.ko
BTF [M] ubuntu/ubuntu-host/ubuntu-host.ko

CALL scripts/checksyscalls.sh
DESCEND objtool
INSTALL libsubcmd_headers
DESCEND bpf/resolve_btfids
INSTALL libsubcmd_headers
CHK kernel/kheaders_data.tar.xz
Kernel: arch/x86/boot/bzImage is ready (#2)

Reading from here :

he says to do this :

root@ziomario-Z390-AORUS-PRO:/usr/src/linux-source-6.5.0/linux-source-6.5.0# make -j4 deb-pkg
GEN debian
error: creating source package requires git repository

What’s the next command to install the recompiled kernel or better to produce a deb package ?