linux-kernel - Re: [PATCH v3 1/2] docs: admin-guide: Update bootloader and installation instructions

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Date:   Fri, 24 Nov 2023 21:42:32 -0500
From:   Hunter Chasens <hunter.chasens18@....edu>
To:     Jonathan Corbet <corbet@....net>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/2] docs: admin-guide: Update bootloader and installation
 instructions

On Friday, November 24, 2023 11:56:43 AM EST you wrote:

> But the makefile is looking for "installkernel", right?  Unless I'm
> missing something, that's the one that will work with "make install". ?

The `make install` calls `/scripts/install.sh`. `/scripts/install.sh` uses 
a variable called $INSTALLKERNEL to search a few directories. If it can't 
find what it's looking for it searches for an `install.sh` script in 
srctree/arch/$arch/. `kernel-install` is part of the systemd stack, and can 
be invoked as `installkernel`. It gets invoked as installkernel during 
`make install` through some wizardry I'm not super familiar with. I guess 
it's more of an install binary than an install script, but there's no 
`installkernel.sh` on many current distributions. Just programs that 
pretend to be `installkernel.sh` which might confuse a user looking for 
such a script.

I suppose it would be more accurate to say something like: "It is also 
possible to do `make install` if you have lilo installed or if your 
distribution has an installer compatible with the kernel's makefile."

Thank you for your feedback,
    Hunter

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