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Re: [PATCH] Improve ext2 driver to allow embedding of the boot loader co

From: Vladimir 'φ-coder/phcoder' Serbinenko
Subject: Re: [PATCH] Improve ext2 driver to allow embedding of the boot loader code.
Date: Tue, 21 Jan 2014 09:32:45 +0100
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On 21.01.2014 09:28, Andrey Borzenkov wrote:
> On Tue, Jan 21, 2014 at 12:14 PM, Vladimir 'φ-coder/phcoder'
> Serbinenko <address@hidden> wrote:
>> On 10.01.2014 08:49, Dr. Tilmann Bubeck wrote:
>>> The blocklist is fixed and stable and will never change.
>> What guarantees that it won't change on grub-setup invocation? I'm under
>> impression that it will change on every grub-setup invocation as file
>> gets recreated.
> If I read code correctly, it checks current size and if new core.img
> fits, space is reused. So we could effectively make it preallocate
> reasonable size (or even unreasonable - I guess 10MB will be enough
> for foreseeable future) the very first time it is done.
It still doesn't solve the problem that during operations file becomes a
normal file and OS is allowed to rearrange the blocks as it sees fit.
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> Grub-devel mailing list
> address@hidden

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