From: <jhf@rivenstone.net>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Erik Andersen <andersen@codepoet.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] fix 2.4.x incorrect argv[0] for init
Date: Wed, 1 Oct 2003 15:34:25 -0400 [thread overview]
Message-ID: <20031001193425.GA19793@rivenstone.net> (raw)
In-Reply-To: <20031001185613.GA13945@codepoet.org>
[-- Attachment #1: Type: text/plain, Size: 1249 bytes --]
On Wed, Oct 01, 2003 at 12:56:13PM -0600, Erik Andersen wrote:
> In 2.4.x when someone specifies "init=/bin/foo" to select an
> alternative binary to run instead of /sbin/init, argv[0] is not
> to the correct value. This is a problem for programs such as
> busybox that multiplex applications based on the value of
> argv[0]. For example, even if you specify init=/bin/sh" on the
> kernel command line, busybox will still receive "/sbin/init" as
> argv[0], and will therefore run init rather than /bin/sh...
>
> This problem was recently fixed in 2.6.x. This patch applies
> the same fix to 2.4.x.
I didn't know that got merged. Great!
Debian users running 2.6: go install busybox-static, then make a
link from /sbin/sh to /bin/busybox. If something bad happens to your
file system or libc or something like that, you can still boot with
init=/sbin/sh and get a shell prompt and all the important utilities
as long as /bin/busybox is okay. It's a nice failsafe, especially
when testing kernels or running an unstable distribution.
If this patch gets merged in 2.4, 2.4 users will be able to do this
too.
--
Joseph Fannin
jhf@rivenstone.net
"That's all I have to say about that." -- Forrest Gump.
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
next prev parent reply other threads:[~2003-10-01 19:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-01 17:44 Linux 2.4.23-pre6 Marcelo Tosatti
2003-10-01 18:56 ` [PATCH] fix 2.4.x incorrect argv[0] for init Erik Andersen
2003-10-01 19:34 ` jhf [this message]
2003-10-01 21:21 ` Linux 2.4.23-pre6 David van Hoose
2003-10-02 7:08 ` Marcelo Tosatti
2003-10-02 11:09 ` David van Hoose
2003-10-02 22:13 ` J.A. Magallon
2003-10-05 21:42 ` Marcelo Tosatti
2003-10-09 22:21 ` 2.4.23-pre6 aic79xx compile failure amd64 Samuel Flory
-- strict thread matches above, loose matches on Subject: below --
2003-09-09 22:32 [PATCH] fix 2.4.x incorrect argv[0] for init Erik Andersen
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=20031001193425.GA19793@rivenstone.net \
--to=jhf@rivenstone.net \
--cc=andersen@codepoet.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marcelo.tosatti@cyclades.com \
/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.