linux-kernel - Re: UEFI booting Kernel without bootloader

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Message-ID: <20140816174937.GA17134@kroah.com>
Date:	Sat, 16 Aug 2014 10:49:37 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	Mohan Rajanna <mohan.ostfold@...il.com>
Cc:	kernelnewbies@...linux.org, linux-kernel@...r.kernel.org
Subject: Re: UEFI booting Kernel without bootloader

On Sat, Aug 16, 2014 at 05:24:08PM +0530, Mohan Rajanna wrote:
> Dear Elites,
> 
>  
> 
> Since I am not supposed to ask questions directly to Greg, So posting my query
> to you all.

You shouldn't ever ask questions only to a kernel developer, that's what
a mailing list is for.

> Query:
> 
>                 I am doing study on necessary changes required to boot Kernel
> and initrd directly from UEFI without boot loader support. I found very helping
> stuff in below link.
> 
> http://www.kroah.com/log/
> 
> Can I get concrete configuration steps for the same.

What did you try that did not work?

>                 What are the impact/dependencies if boot loader is not used ?

Upgrading a kernel version is totally different, you need to tell UEFI
about it, which is different from what distros currently do.

thanks,

greg k-h
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