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Date: Thu, 4 Apr 1996 16:35:00 -0500 (EST)
From: Ron Steele <rjs@asd.banctec.com>
To: adrian@virginia.edu
cc: "Christoph P. Kukulies" <kuku@gilberto.physik.rwth-aachen.de>,
        freebsd-questions@freefall.freebsd.org
Subject: Re: what is bsdish?
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On Thu, 4 Apr 1996, Adrian T. Filipi-Martin wrote:

> On Thu, 4 Apr 1996, Christoph P. Kukulies wrote:
> 
> > 
> > I had a discussion with someone recently about flavors of OSs
> > and I was stating that HP-UX (Version 9.05) is SYSV flavor.
> > It has ps -edf, different kernel build environment, no /etc/rc.
> > He was stating HP-UX *is* BSD. Now what makes a SYSV system, what
> > makes a BSD system?
> 
> 	Well, the Aeleen Frish's "Essential System Administration" uses 
> the presence or absence of /etc/inittab to classify machines.  It's 
> pretty goot all in all.  I think another indicator of  a kernels true 
> lineage is whether the group ownership of a file is inhereted from the 
> containing directory without the sgid bit being set.  This use of the 
> sgid bit is for BSD compatiblity.
> 
> 	BTY, I believe HP-UX 9.x is SRV3 derived whereas HP-UX 10.x is 
> SRV4.  HP-UX does have a bunch of BSDisms though. (Not enough for me 
> thoguh. ;-)
> 
> 	Adrian
>         System Administrator for the NVL, NIIMS and Telemedicine labs
> 

My understanding, from talking with a person from HP who should know, is that
HP-UX 10.x still uses the old code base - it definately is not 
a rewrite, or SYSVR4, they just added another layer over the same old stuff.  
This includes the changes to the file system.  Also, the BSDish features of 
HP-UX do not share code with the SYSV features. It's like two OS's in one.  
I have no first hand knowledge of this (I'm just a user), just passing
along rumors.

Sorry this is off the subject, but HP-UX is a hot-button for me.


Ron Steele