Re: Mystery of chroot

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on 7/23/2007 1:41 AM, Les wrote:
> On Sun, 2007-07-22 at 22:26 -0700, David Boles wrote:
>> on 7/22/2007 10:18 PM, Ed Greshko wrote:
>>> David Boles wrote:
>>>> on 7/22/2007 9:40 PM, Ed Greshko wrote:
>>>>> David Boles wrote:
>>>>>> Really? I have said that I am not a techie only a user of a tool.
>>>>>> Can you name me one personnel computer that would run then, or will today,
>>>>>> a true Unix OS?
>>>>> Sorry, I have to ask.  What is "true Unix OS"?  Does Solaris qualify?
>>>> I am not sure Ed. What I had in my mind was the OS that runs on those
>>>> really large cabinets in those really cold rooms. I have worked on those.
>>>> The rooms and the A\C not the computers.
>>> Well, if you're not sure of what your definition is of "a true Unix OS" then
>>> a challenge or question as to if a PC will run them kind of loses its meaning.
>>> I venture to say that most folks would classify Solaris as a "true Unix OS"
>>> and yes, they mostly ran on Sparc CPU server systems in rooms with false
>>> floors and big A/C's.  And yes, in the early days, the workstation varieties
>>> used Sparc CPU's and not your typical Intel or AMD processor.
>>> But, today Solaris runs just fine on Intel.  So, I would submit that as an
>>> answer to your question.
>> Like I said - I was thinking of main frame stuff on big cabinets in really
>> cold rooms.
>> I have never tried Solaris or Sparc. Are they considered what I described
>> as 'a true Unix'? I was not even aware that they would run in x86 type
>> equipment.
>> I am *not* trying to be a smart *** here. I would like to know.
> Yes, Solaris is Unix, and runs on x86 and lots of other architectures.
> As to the big machines in really cold rooms, most modern desktops have
> more power than the early Unix systems did.  In 1972 a 10Mb disk was
> huge.  I worked on a 40Mb disk which had air pumps, pnumatic pistons to
> drive the heads and ran at 3600 RPM with platters that were about 20" in
> diameter if I remember right.
> 	Sparc is a kind of processor, it means Sparse instruction set computer.
> Generally with 32 or so registers, these cpus were capable of very fast
> operations, and only have 20-50 instructions.  Kind of a hardware
> implementation of a P-machine for PASCAL.
> Regards,
> Les H

Thanks Les, for the information. This sounds like an adventure yet to happen.

I will try this first chance I get.



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