Date: Sat, 31 Jan 2009 15:09:27 -0900 From: Mel <fbsd.questions@rachie.is-a-geek.net> To: freebsd-questions@freebsd.org Cc: "Bjoern A. Zeeb" <bzeeb-lists@lists.zabbadoz.net>, freebsd-jail@freebsd.org Subject: Re: Problem with ezjail: Manually restarted jails don't come up again Message-ID: <200901311509.28014.fbsd.questions@rachie.is-a-geek.net> In-Reply-To: <20090129010926.GA6652@haydn.nognu.de> References: <20090128202556.GA30226@haydn.nognu.de> <200901281523.33379.fbsd.questions@rachie.is-a-geek.net> <20090129010926.GA6652@haydn.nognu.de>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wednesday 28 January 2009 16:09:26 Frank Steinborn wrote:
> On Wed, Jan 28, 2009 at 03:23:33PM -0900, Mel wrote:
> > On Wednesday 28 January 2009 12:24:31 Frank Steinborn wrote:
> > > 37948 p3 TJ 0:00.01 -su -c /bin/sh -c ^I"/usr/local/bin/mlnet ^I
> > > ^I ^I>> /dev/null 2>&1 &" (zsh)
> >
> > ^^^
> > Why is zsh shell involved?
>
> This was it. I should not have used the root-account inside the jails
> with zsh. I now use the toor account on zsh and put the shell of root
> back to csh everywhere.
>
> However, I don't understand why zsh is invoked, since all rc.d-scripts
> have shebang lines telling them to use /bin/sh? I'm a bit confused,
> maybe can someone give a bit light on this...
su invokes $SHELL of the target user, from su(8):
By default, the environment is unmodified with the exception of USER,
HOME, and SHELL. HOME and SHELL are set to the target login's default
values. USER is set to the target login, unless the target login has a
user ID of 0, in which case it is unmodified. The invoked shell is the
one belonging to the target login. This is the traditional behavior of
su.
So:
su root -c /bin/sh expands to ${SHELL} /bin/sh
--
Mel
Problem with today's modular software: they start with the modules
and never get to the software part.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200901311509.28014.fbsd.questions>