Copy protection

[Vassilis Virvilis]

Mike McCormack wrote:
> 
> Tim Schmidt wrote:
> 
>> It sounds like a general framework for routing these kind of raw disk
>> i/o would be useful...  probably configurable by app would be most
>> useful.
> 
> 
> UML has a COW (copy-on-write) layer [1].  If we had something like this, 
> conceivable we could allow Wine to read raw disks (or the COW file), 
> then write back to the COW file.
> 
> It would be even nicer if the Linux kernel supported that in a general 
> way...
> 
> Mike
> 
> 
> [1] http://user-mode-linux.sourceforge.net/UserModeLinux-HOWTO-7.html
> 
> 
> 

How about a loopback device in linux?

    .bill