For personal hobby reasons I want to write an OS completely from scratch (due to some aspects of the design no existing OS is a suitable starting place)... what I mean is I want to start with the MBR (boot0) and go on from there... I only have one *REAL* machine to work with which means I need to work with something like emulators/virtualbox-ose... I also want to do as many automated tests as possible (for example seeing if the installer copied the MBR [and later other stuff] correctly to the virtual HDD).... for this reason I have a few questions on vb (or perhaps QEMU if not possible in vb):
1. Can it be scripted? 2. Is there any documentation on the various virtual HDD formats and such (that way I can check the "physical" drive and not by indirect query)? Also can people give me some idea of a good general development/testing framework.... the one I have in mind so far is: 1. Write enough of the OS in FreeBSD to boot and give a command prompt and then develop using it (assume that there is a working compilor [note I am doing it completely in Java (note 1) and will be using either gjava (gcc) or writing my own compiler]) Notes: 1. Due to OS's needing to address physical RAM directly (DMA mapped I/O) I will be introducing some form of ptr's into java with the compiler or native ASM _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
