linux-kernel - Re: [PATCH] boot install: Partially refactor the logic for detecting bootloader

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Date:   Sat, 19 Mar 2022 22:20:12 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Beru Shinsetsu <windowz414@...weeb.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        GNU/Weeb Mailing List <gwml@...weeb.org>,
        Alviro Iskandar Setiawan <alviro.iskandar@...weeb.org>
Subject: Re: [PATCH] boot install: Partially refactor the logic for detecting
 bootloader

On Thu, Mar 17, 2022 at 04:46:48PM +0300, Beru Shinsetsu wrote:
> > Well, I saw this on SLE15-SP4 (brand new) yesterday while I haven't
> > seen it on previous service packs. So this doesn't look like it has
> > been there since 2007. I'll try to debug it when I get a chance.
> 
> Hmm alright. Good luck from now! Hope everything goes flawlessly.

Here it is:

>From arch/x86/boot/install.sh:

...
# User may have a custom install script

if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
...

so distros *usually* should supply a custom, distro-specific
installkernel script which does that. The distros which you are seeing
it on simply don't have that script installed and I need to talk to
distro people as to what the rule there is for supplying such a script
now.

Because most distros should supply it though and those new distros
dropping it looks like some new "strategy" or so.

We'll see.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette