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List:       pkg-shadow-devel
Subject:    [Pkg-shadow-devel] Bug#421652: /bin/login: can call from the command line anymore
From:       Nicolas =?UTF-8?Q?Fran=C3=A7ois?= <nicolas.francois () centraliens ! net>
Date:       2007-04-30 21:35:37
Message-ID: 20070430213536.GA13884 () nekral ! homelinux ! net
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Hello,

On Tue, May 01, 2007 at 04:06:33AM +0800, jidanni@jidanni.org wrote:
> 
> Nowadays
> $ /bin/login
> says
> No utmp entry.  You must exec "login" from the lowest level "sh"
> 
> even though
> $ cat /proc/$PPID/cmdline
> says
> /bin/login
> 
> I.e., I am certainly at the lowest shell. pstree says
> init--login--bash.

Why do you want to run login?

login is usually run from init--getty, by root.
getty ensures that there is a utmp entry.

> So you might change
> No utmp entry.  You must exec "login" from the lowest level "sh"
> to
> Try instead "exec login" from the lowest level "sh".

"No utmp entry." is the reason of the failure, I do not want to remove it.

> or something.

That would be better. Maybe the message should give a tip about running
login as root. I propose:
    No utmp entry.  You may want to run, as root, "exec login".

It used to be possible to "exec login", but this is no more the case since
login is no more suid.

Kind Regards,
-- 
Nekral



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