BUG - KDUMP HLD links explaining how to build vmlinuz to match crash tool are broken.

[davidpil2002]

We do not triage issue for this repo. All issues are triaged in sonic-net/sonic-buildimage repo
In the HLD below, the links explaining how to build vmlinuz with debug symbol to be used with crash utils to use the feature kdump are broken.

I will appreciate if you can share info about how to prepare the vmlinuz with debug symbol to be ready for crash util.
I can share that I build the binary with the flag KERNEL_DEBUG=y and still I could not use the crash utility, I got the following error:
crash: /tmp/vmlinuz-5.10.0-18-2-amd64: not a supported file format
I think it's because the vmlinuz is ZIP.
can you help by explaining how to prepare the vmlinuz to match the KDUMP feature?

HLD KDUMP link
SONiC/doc/kdump/SONiC-kdump.md

[davidpil2002]

I miss one line in the introduction that explain how to get kernel with symbols.