Path: utzoo!attcan!uunet!ncrlnk!ncrcae!wescott
From: wescott@ncrcae.Columbia.NCR.COM (Mike Wescott)
Newsgroups: comp.unix.questions
Subject: Re: Determining amount of physical memory
Message-ID: <4517@ncrcae.Columbia.NCR.COM>
Date: 26 May 89 14:20:38 GMT
References: <1940@se-sd.sandiego.ncr.com>
Reply-To: wescott@ncrcae.Columbia.NCR.COM (Mike Wescott)
Organization: NCR Corp., Engineering & Manufacturing - Columbia, SC
Lines: 18

In article <1940@se-sd.sandiego.ncr.com> rns@se-sd.sandiego.NCR.COM (Rick Schubert(AEP)) writes:
> I'm trying to find out how much physical memory my system has.
> Should the following give me an accurate figure?

> 	dd if=/dev/mem of=/dev/null bs=1024

It might,  but it depends on the implementation of the /dev/mem driver
and on the contiguity of physical memory.

Try
	dd if=/dev/mem of=/dev/null bs=1024 conv=noerror 

It might show more memory.  Many NCR Towers have physical memory
configured in noncontiguous address ranges.

-- 
	-Mike Wescott
	 mike.wescott@ncrcae.Columbia.NCR.COM