Once upon a time, Marko Vojinovic <vvma...@gmail.com> said:
> On Thursday 12 January 2012 05:53:42 g wrote:
> > if you compare "/etc/shadow" to "/etc/shadow.rpmnew" when it is there,
> > you will see that yum/rpm has added a program's name to "/etc/shadow"
> > when yum/rpm adds a new program that needs to be assigned an id.
> > 
> > this also happens to "/etc/group", "/etc/gshadow", and "/etc/passwd".
> > 
> > why "/etc/shadow.rpmnew" was removed is hard to answer.
> 
> AFAIK, yum/rpm can use the "usual" method of getting an id for a new program 
> (calling useradd or similar), which doesn't involve creating a shadow.rpmnew 
> file.

This has nothing to do with adding users.

The file /etc/shadow is owned by the "setup" RPM (it has the base
OS-defined users like "root" and "mail").  When that RPM gets an update,
rpm will see that /etc/shadow has changed (because users have been
created) and not overwrite it.  It will instead write it to
/etc/shadow.rpmnew (and print a notification that it did that).  This is
no different than any other file marked as a configuration file in the
RPM.

Since /etc/shadow.rpmnew is meaningless, the "setup" RPM has a
post-install script to remove it.

-- 
Chris Adams <cmad...@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
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