From: "H. Peter Anvin" <hpa@zytor.com>
To: linux-kernel@vger.kernel.org
Subject: Re: User/kernelspace stuff to set/get kernel variables
Date: 13 Dec 2001 12:34:49 -0800 [thread overview]
Message-ID: <9vb3d9$9jk$1@cesium.transmeta.com> (raw)
In-Reply-To: <20011213155532Z284289-18284+114@vger.kernel.org>
Followup to: <20011213155532Z284289-18284+114@vger.kernel.org>
By author: DevilKin <devilkin@gmx.net>
In newsgroup: linux.dev.kernel
>
> Hello
>
> I've been looking on the web, and couldn't really find what i would want...
>
> Basically: is it possible to - one way or another - set variables at
> kernel boot and read those using userspace utilities?
>
The entire kernel command line is quoted verbatim in /proc/cmdline.
Additionally, items of the form foo=bar that are not recognized by the
kernel become environment variables to init, and items not of that
form *sometimes* become command-line options to init...
-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>
prev parent reply other threads:[~2001-12-13 20:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-13 15:54 User/kernelspace stuff to set/get kernel variables DevilKin
2001-12-13 16:03 ` Daniel Freedman
2001-12-13 16:07 ` Richard B. Johnson
2001-12-13 16:11 ` Yann E. MORIN
2001-12-13 16:20 ` Jan Janak
2001-12-13 16:58 ` Russell King
2001-12-13 19:48 ` Jan Janak
2001-12-13 20:34 ` H. Peter Anvin [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='9vb3d9$9jk$1@cesium.transmeta.com' \
--to=hpa@zytor.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.