Howard,
When I was thinking about which book would be the book I needed I instantly
thought this book would be good:
Inside Cisco IOS Software Architecture. Cisco Press, ISBN 1-57870-181-3
I had seen it at the book store, paged through it a couple of times, too.
Yesterday (before you sent your reply) I thumbed through it again and I
didn't find anything on booting, and such as I was looking for. I guess I
will go and take a closer look today and try to find the section that goes
into this. I noticed most of the book indicated how the IOS utilizes system
resources. I might grab a coffee and read the thing at the book store, it's
only about 200 pages long.
>>>Brian
>From: "Howard C. Berkowitz" <[EMAIL PROTECTED]>
>Reply-To: "Howard C. Berkowitz" <[EMAIL PROTECTED]>
>To: [EMAIL PROTECTED]
>Subject: Re: books on booting
>Date: Sun, 28 Jan 2001 17:18:47 -0500
>
> >I would like opinions of others in the group on a book that really digs
>into
> >the boot sequences, flash architechture for the different models,
>bootstrap
> >setup, secondary bootstrap images, bootloader, how the different models
>load
> >IOS, all that kind of stuff.
>
>Inside Cisco IOS Software Architecture. Cisco Press, ISBN 1-57870-181-3
>
> >My friend has found a book that sounds pretty good called: Cisco Router
> >Performance Field Guide from McGraw-Hill - has anyone read this book and
>if
> >you have please comment. I just want to learn all the ways to setup IOS
>load
> >redundancy, troubleshooting boot errors, stuff like that.
> >
> >Side note: has anyone found wierd non-cisco like commands in certain
>modes?
> >Last night we were playing around and found in one mode the router
>responded
> >to dir -and it showed us the flash directory files.
>
>There's IOS--the true real time operating system-- and what Cisco
>marketing calls IOS (i.e., everything Cisco has). You will find some
>non-IOS commands that are compatibility modes to acquired product
>lines.
>
>Incidentally, IOS and most commercial vendor router operating systems
>are not really UNIX derivatives. They are purpose-built real time
>operating systems. Any similarity to UNIX comes primarily from the
>fact that most computer scientists have worked with UNIX, where a lot
>of OS concepts were worked out.
>
>I suppose it depends how far you stretch the definition of
>UNIX-related. Is a MACH-based kernel UNIX derived? How about
>operating systems with pthreads? Since UNIX, or at least its name,
>derived from MULTICS, is everything MULTICS derived? Windows NT
>certainly has a lot of VMS ancestry.
>
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