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Re: [PATCH] memdisk plus lnxboot extension

From: Bean
Subject: Re: [PATCH] memdisk plus lnxboot extension
Date: Fri, 25 Jan 2008 01:04:34 +0800

On Jan 25, 2008 12:55 AM, Robert Millan <address@hidden> wrote:
> On Thu, Jan 24, 2008 at 03:25:51PM +0100, Robert Millan wrote:
> >
> > You want to add a feature that only works when you have the ability to load
> > images of an arbitrary size.  However, if we had this ability we wouldn't 
> > have
> > to compress core.img, or make it small in the first place.  We would then
> > just create core.img of an arbitrary size, and include a memdisk of an
> > arbitrary size in it.  But then we wouldn't need a feature to work around 
> > the
> > size restriction in memdisk!
> Just discussed it with Marco on IRC, and he said we could load core.img in 
> high
> memory, like in 0x100000 right away.  This solves the size limit in memdisk
> which I think is the source of the problem.
> Of course, this collides with the OS load area, so we'd also need to add
> relocation in loader, as described in the "grub_dl_unload_all()" thread.  I
> do even have unfinished code for this, although it may take a while to get it
> done properly (maybe we need to add features to memory manager or so).  Does
> this work for you?

i think this is great, we don't have to worry about memdisk size, and
no need for the initrd hack anymore.


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