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Re: Everything and the kitchen sink


From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: Everything and the kitchen sink
Date: Thu, 14 Feb 2013 16:48:13 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130116 Icedove/10.0.12

On 14.02.2013 16:05, Phillip Susi wrote:

> I recently had an incident that reminded me that while the grub rescue
> shell is better than nothing when there's a problem, it often isn't
> enough to troubleshoot and work around the error.  These days most
> disks start the first partition at 1 MiB, so there is no need to keep
> the core.img slim and trim, so it would be really nice to throw all of
> the modules in there, so you can have a fully functional grub to help
> troubleshoot when things go wrong.
> 
> Now I realize that I can manually build a ramdisk image to contain all
> modules, and pass that to grub-mkimage, but then as soon as grub is
> updated, and grub-install is re-run automatically, my changes would be
> wiped out.
> 
> So I think what needs to happen is for grub-install to grow an
> --everything option where it would build the ramdisk and attach it
> automatically.  Additionally there needs to be a conf file or
> something where this could be enabled so that it will be applied when
> grub is updated.  It may also be nice to have this enabled by default
> when the embed area is detected to be large enough.
> 
> Thoughts?

GRUB diskboot.S runs in real mode. No way it can load more than ~512K

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