Re: [uml-devel] Re: more on COW (long)

[Dan S. <da...@sh...>]

On Wed, Jan 28, 2004 at 12:18:24AM -0500, Jeff Dike wrote:
> mcm...@ju... said:

> > Well yes, I want to be able to read real disk images either from a raw
> > device, yes we could stick in a special case ioctl to check for a real
> > device and read its geometry but ick it is easier to specify it, or
> > from a dd'ed image file of a hard disk which would not work even with
> > the ioctl, so ubd1C102H15S16 is better from my view :)
> 
> OK, build it and maybe people will come :-)

Yep. I work with many different simulation environments and this is a
*really* useful option. Apart from anything else real sectors are a kind
of semi-universal file format between simulation environments. But there
is also the case where you dd from a running system for purposes such as
planning preventative maintenance, disaster recovery, forensics,
security testing to mention a few. Not too many of the open source
simulators do this but many of the closed source ones do.

--
Dan Shearer
da...@sh...