Hello Pablo,
User Mode Linux actually works more like dosemu than it may seem. UML runs as a normal application under a host Linux system, of course. But when you run, say, /bin/ls within a UML session, UML will indeed intercept the syscalls made by the /bin/ls and transform them into the correct requests to the underlying host Linux. So effectively /bin/ls's syscalls actually go to UML, not directly to the host system. There is
I am not comfused about UML, it is a true and complete Linux system that runs over a Linux hosts. Instead interfacing with hardware devices, it uses virtual devices provided by the Linux Host. The example of "ls" doesn't work as you explain. Containers runs in this way.
With all due respect, I have worked with the UML source code before, and I know whereof I speak. The UML home page --- not that hard to find --- also has presentations and papers that discuss how exactly UML virtualizes syscalls, Thank you! -- https://github.com/tkchia :: https://gitlab.com/tkchia _______________________________________________ Freedos-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/freedos-devel
