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tech / sci.electronics.design / Re: Boot from RAM feature

SubjectAuthor
* Boot from RAM featureSkybuck Flying
`- Re: Boot from RAM featureJasen Betts

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Boot from RAM feature

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Subject: Boot from RAM feature
From: skybuckf...@gmail.com (Skybuck Flying)
Injection-Date: Mon, 19 Feb 2024 01:51:35 +0000
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 by: Skybuck Flying - Mon, 19 Feb 2024 01:51 UTC

When Windows shuts down, it copies a new operating system to memory address zero.

It instructs the hardware/bios/eufi for next warm boot to:
1. Do not clear RAM
2. Boot from RAM address 0

This would allow easier OS development and dedicated software without disk/partition/boot program changes, safer/easier.

Bye,
Skybuck

Re: Boot from RAM feature

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From: use...@revmaps.no-ip.org (Jasen Betts)
Newsgroups: sci.electronics.design
Subject: Re: Boot from RAM feature
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 by: Jasen Betts - Tue, 27 Feb 2024 07:26 UTC

On 2024-02-19, Skybuck Flying <skybuckflying@gmail.com> wrote:
> When Windows shuts down, it copies a new operating system to memory address zero.
>
> It instructs the hardware/bios/eufi for next warm boot to:
> 1. Do not clear RAM
> 2. Boot from RAM address 0

This is not a new idea. the only way to get an 80286 out of protected mode was a hard reset.

> This would allow easier OS development and dedicated software without disk/partition/boot program changes, safer/easier.

usuing a virtual machine is probably easier.

--
Jasen.
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