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Message-ID: <6675c47a-d258-41ae-b506-88d7ae74b551@infradead.org>
Date:   Sun, 22 Oct 2023 17:14:58 -0700
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Subject: Re: How can I add "busybox sh" as init during boot of the custom
 kernel?
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To:     gmssixty gmssixty <gmssixty@gmail.com>,
        linux-kernel@vger.kernel.org
References: <CAOx-CDUwV0d0+2UdZW+vdUcjwAg2+Hanf1-iNSYFRWOW2yQugg@mail.gmail.com>
From:   Randy Dunlap <rdunlap@infradead.org>
In-Reply-To: <CAOx-CDUwV0d0+2UdZW+vdUcjwAg2+Hanf1-iNSYFRWOW2yQugg@mail.gmail.com>
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On 10/22/23 16:56, gmssixty gmssixty wrote:
> How can I add "busybox sh" as init during boot of the custom kernel? I
> have compiled the kernel and put the bzImage in /dev/sda3 (/mnt/sda3).
> Booted that kernel. After booting, I got a message to set the init
> process. I have put the busybox in /bin. Now I want to add this
> "busybox sh" as an init process. How can I do this?
> 
> Note that, I did not install any other software in that /dev/sda3
> (/mnt/sda3). I have only bzImage and busybox.

from Documentation/admin-guide/kernel-parameters.txt:
(or https://docs.kernel.org/admin-guide/kernel-parameters.html)

	init=		[KNL]
			Format: <full_path>
			Run specified binary instead of /sbin/init as init
			process.

-- 
~Randy