From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [Q] pivot_root and initrd
Date: 23 Oct 2001 14:00:44 -0700 [thread overview]
Message-ID: <9r4lps$hbo$1@cesium.transmeta.com> (raw)
In-Reply-To: <Pine.LNX.4.33L.0110231759020.3690-100000@imladris.surriel.com> <ujkB7.3878$1%5.659642574@newssvr17.news.prodigy.com>
Followup to: <ujkB7.3878$1%5.659642574@newssvr17.news.prodigy.com>
By author: davidsen@tmr.com (bill davidsen)
In newsgroup: linux.dev.kernel
>
> I wasn't really asking about changing root after the system is up, the
> part needed is the uncompressing of the filesystem into a ramdisk root f/s
> or some such. After that it's pretty much open to any of several techniques.
>
> Getting the modules loaded to support the root f/s and run a little rc
> file to get things going is the bootstrap operation, and that's where
> initrd is vital. You really don't want to build a kernel for every
> machine if you have more than a few! One kernel and a few config and
> initrd files is vastly easier.
>
> What replaces the initial step?
>
We will definitely have initrd or initramfs to do this (initramfs is
using the initrd protocol to populate a ramfs from a tar/cpio image.)
However, when it comes up, it will be the root as far as the kernel is
concerned, and run /sbin/init (unless overridden on the kernel command
line, of course) like any other boot. None of this change_root and
/linuxrc special casing garbage.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com>
next prev parent reply other threads:[~2001-10-23 21:00 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-23 17:42 [Q] pivot_root and initrd Eric
2001-10-23 18:14 ` H. Peter Anvin
2001-10-23 19:54 ` bill davidsen
2001-10-23 19:59 ` Rik van Riel
2001-10-23 20:21 ` bill davidsen
2001-10-23 21:00 ` H. Peter Anvin [this message]
2001-10-23 20:37 ` Werner Almesberger
2001-10-23 20:46 ` Richard B. Johnson
2001-10-23 20:52 ` H. Peter Anvin
2001-10-23 21:05 ` Richard B. Johnson
2001-10-23 21:06 ` H. Peter Anvin
[not found] <p05100304b80cbe9cf127@[10.128.7.49]>
2001-11-06 0:05 ` Eric
[not found] <p05100328b7fb8dcb9473@[207.213.214.37]>
2001-10-23 21:54 ` Eric
2001-10-24 0:20 ` Werner Almesberger
[not found] <p05100300b7f2b3b94b17@[10.128.7.49]>
2001-10-17 18:34 ` Eric
2001-10-17 21:17 ` H. Peter Anvin
2001-10-27 12:45 ` Kai Henningsen
2001-11-05 21:52 ` Andreas Schwab
-- strict thread matches above, loose matches on Subject: below --
2001-10-17 2:16 Eric
2001-10-17 3:30 ` H. Peter Anvin
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