>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.
I was thinking less of having details of booting as having the
details of memory structures, where IOS runs from, etc., which will
drive the characteristics of booting.
>
>>>>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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