linux-kernel - Re: using deprecated initrd support, will be removed in 2021

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Date:   Thu, 4 Mar 2021 09:13:29 +0100
From:   Christoph Hellwig <hch@....de>
To:     Art Nikpal <email2tema@...il.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: using deprecated initrd support, will be removed in 2021

On Wed, Mar 03, 2021 at 05:18:05PM +0800, Art Nikpal wrote:
> hello Christoph
> i have see your patch https://lkml.org/lkml/2020/7/14/1508
> /* using deprecated initrd support, will be removed in 2021*/
> 
> How can I clarify the situation ?!
> 
> im using squashfs as ramdisk / all system works  as all in ram kernel +
> initrd (squashfs)
> and i think it's very useful  - how can we replace it ?

With a simple initramfs, you should be able to chose the same compression
algorithms as you do for squashfs right now and generate a better image.

> and another question:  why need to remove it - if it works fine ?

It causes a fair amount of maintainance burden in the kernel, and also
is less efficient for the user.