Subject: Re: [PATCH] enable RTAS /proc for PowerPC/CHRP platform

From: Olaf Hering <[email-masked]>
Date: Fri, 20 Oct 2006 07:44:34 +0200

On Fri, Oct 20, Benjamin Herrenschmidt wrote:

> On Thu, 2006-10-19 at 09:03 +0200, Olaf Hering wrote:
> > On Thu, Oct 19, Benjamin Herrenschmidt wrote:
> > 
> > > On Wed, 2006-10-18 at 09:38 +0200, Olaf Hering wrote:
> > > > On Wed, Oct 18, Michael Ellerman wrote:
> > > > 
> > > > > But it's called '/proc/ppc64' right now on lots of machines, so you
> > > > > can't go changing it.
> > > > 
> > > > if test -d /proc/ppc64 .. is a quick way to check wether the system is
> > > > 64bit or not. Similar to if test -d /proc/iSeries ..
> > > 
> > > That's really ugly ! You really do that ? Gack...
> > 
> > What way should I use?
> 
> uname ? /proc/cpuinfo ? Whatever but not that.

uname can be faked with powerpc32 or setarch. grep POWER /proc/cpuinfo
might be an option. I think its only used in rpm preinstall scripts to
reject 64bit kernel on 32bit systems or the other way around.