[uml-devel] Hi All.

[uml-devel] Hi All.

[Maltesh Badiger]

Hello All,

I am using User Mode Linux (UML).
I want to know the following :

1) How the uml kernel is possible to run in user mode
(user space).
2) When, we apply the patch to a kernel image,
Actually what happens to the original kernel?
I want to know what changes takes place to the kernel
code.

If anybody know about these.Please let know the
answers.

Thanks in advance
Maltesh


=====
Thanks & Regards
Maltesh (98454-53510)

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Re: [uml-devel] Hi All.

[William Stearns]

Good day, Maltesh,

On Fri, 5 Sep 2003, Maltesh Badiger wrote:

> I am using User Mode Linux (UML).
> I want to know the following :
> 
> 1) How the uml kernel is possible to run in user mode
> (user space).

	It's a _second_ kernel running on the system on top of the 
original kernel.  It's compiled just like any other program; it is loaded 
from the command line, initializes itself, and exits.

> 2) When, we apply the patch to a kernel image,
> Actually what happens to the original kernel?
> I want to know what changes takes place to the kernel
> code.

	The original kernel is left just as it is.  We take a complete 
secnd copy of the kernel sources, apply this patch, and compile that into 
the UML executable.
	Take a look at some of the UML documentation; it explains this 
stuff pretty well.
	Cheers,
	- Bill

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